HP Pro Mini 400 G9
About This Desktop
#tab-content img { max-width: 100%; } Overview Specifications Warranty and Return Review
Main FeaturesIntel Core i5 2 GHz processor provides you the solid performance to watch videos, play games, and on the same node its adaptability makes you more productiveIt's Windows 11 Pro operating system offers powerful platform to efficiently run routine applications512 GB SSD is enough to store your favorite songs, movies, pictures, and essential documentsIntel UHD Graphics 770 shared graphic card for watching HD videos, editing pictures, and complex office applications16 GB memory makes you productive with its smooth performanceMarketing InformationCommercial-grade Mini PC that fits anywhere you work The HP Pro Mini 400 provides users with the commercial-grade performance, security, and the flexible deployment capabilities needed for small, varied workspaces. This reliable, ultra-small PC is powered to handle mainstream enterprise and SMBs with an Intel® processor and protected with always-on security you can trust.Latest Intel® processor Accomplish everything from minor tasks to complex projects with the latest Intel® processor.Flex ports for easy expansion Configure or expand your Mini your way with flex ports for legacy or clean desk connectivity.Protected by HP Wolf Security HP Wolf Security for Business creates a hardware-enforced, always-on, resilient defense var script = document.createElement('script'); document.head.appendChild(script); script.type = "text/javascript"; script.async = true; script.classList.add("eky-script-tag"); script.dataset.ekyDistributor = "a2f96ae5-ae8f-4d07-8720-5ef45eeb05be"; script.dataset.ekyLanguage = "en"; script.dataset.ekySku = "DTHEW01188"; script.src = "//media.pointandplace.com/js/pointandplace.js"; (function (s, y, n, di, go) { di = s.createElement(y); di.type = 'text/java'+y; di.async = true; di.src = n + Math.floor(Date.now() / 86400000); go = s.getElementsByTagName(y)[0]; go.parentNode.insertBefore(di,go); }(document,'script', "https://content.syndigo.com/site/d453f4b7-db96-4020-9880-c40573509ec1/tag.js?cv=")); const p = document.querySelector("syndigo-powerpage"); p.setAttribute("pageid", "265400");
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Operating system Windows 11 Pro7 Memory 16 GB DDR4-3200 MT/s (1 x 16 GB) Standard memory note Transfer rates up to 3200 MT/s. Memory Slots 2 DIMM Internal Storage 512 GB PCIe® Gen4 NVMe™ TLC M.2 SSD Storage type SSD Internal drive bays One 2.5" Processor Intel® Core™ i5-12500T (up to 4.4 GHz with Intel® Turbo Boost Technology, 18 MB L3 cache, 6 cores, 12 threads)8,9 Processor family 12th Generation Intel® Core™ i5 processor Chipset Intel® Q670 (vPro®)10 Weight 1.42 kg11 Graphics Integrated Graphics (integrated) Intel® UHD Graphics 770 Power 90 W external power adapter, up to 89% efficiency, active PFC Dimensions (W x D x H) 17.7 x 17.5 x 3.4 cm Form factor Mini Keyboard HP 125 Wired Keyboard Pointing device HP 125 Wired Mouse Audio Realtek ALC3252 codec, universal audio jack with CTIA and OMTP headset support Expansion slots 1 M.2 22301 M.2 228012 I/O Port location FrontRear Ports 1 headphone/microphone combo1 SuperSpeed USB Type-A 10Gbps signaling rate1 SuperSpeed USB Type-A 10Gbps signaling rate (charging)1 SuperSpeed USB Type-C® 20Gbps signaling rate1 power connector1 RJ-452 SuperSpeed USB Type-A 5Gbps signaling rate2 DisplayPort™ 1.41 HDMI 2.1 Network interface Intel® I219-LM GbE Wireless Intel® Wi-Fi 6E AX211 (2x2) and Bluetooth® 5.3 wireless card Security management Trusted Platform Module TPM 2.0 Embedded Security Chip shipped with Windows 10 (Common Criteria EAL4+ Certified)(FIPS 140-2 Level 2 Certified)HP Secure EraseHP Sure ClickHP Sure SenseAbsolute Persistence moduleHP Sure AdminHP BIOSphere Gen6HP Tamper LockHP Sure Start Gen7HP Platform Certificate On Device Installation13,14,15,16,17,18,19 Ecolabels EPEAT® registered Energy star certified ENERGY STAR® certified Country of origin Mexico(ABC, ABA)Thailand(ABC, ABA) Software included HP NotificationsHP PC Hardware Diagnostics UEFIHP Support AssistantHP Connection OptimizerHP Privacy SettingsHP PC Hardware Diagnostics WindowsHP Desktop Support UtilitiesHP Easy CleanTouchpoint Customizer for CommercialHP Easy Clean Keyboard DriverHSA Fusion for CommercialHSA Telemetry for CommercialHPX for CMIT Available software HP Smart Support Security Software Licenses HP Wolf Pro Security Edition (1 year)20 Management features HP Client Catalog (download)HP Driver Packs (download)HP Image Assistant (download)HP Client Management Script Library (download)HP Connect for Microsoft Endpoint ManagerHP Manageability Integration Kit (download)HP Patch Assistant (download)21,22,23 Manufacturer Warranty 1 year (1/1/0) limited warranty includes 1 year of parts and labor. No on-site repair. Terms and conditions vary by country. Certain restrictions and exclusions apply. Documents HP Pro Mini 400 G9 Desktop PC
Latest Intel® processorAccomplish everything from minor tasks to complex projects with the latest Intel® processor.1
Flex ports for easy expansionConfigure or expand your Mini your way with flex ports for legacy or clean desk connectivity.
Protected by HP Wolf SecurityHP Wolf Security for Business creates a hardware-enforced, always-on, resilient defense.2
Windows 11Work anywhere without compromising on performance or security with Windows 11 powered by HP's collaboration and connectivity technology.High performance, high portabilityGet the exceptional combination of responsive performance, connectivity and speed with a 12th Gen Intel® Core™ processor that lets you launch, create, and connect fast and reliably.Security is your top priorityThe HP Wolf Pro Security Edition provides preconfigured enterprise-level PC protection for small and medium sized businesses.3
Advanced wireless connectivityGet a premium connectivity experience, even in crowded wireless networks, with a fast, reliable wireless connection. This Pro Mini 400’s gigabit data rate Wi-Fi 6E wireless LAN module supports HP Extended Range Wireless LAN.4Automatic recovery from firmware attacksFirmware attacks can completely devastate your PC. Stay protected with HP Sure Start, the self-healing BIOS that automatically recovers itself from attacks or corruption.5Work without interruptionKeep productivity high and downtime low with the fully integrated and automated features of the HP BIOSphere Gen6 firmware ecosystem. Your PCs have extra protection thanks to automatic updates and security checks.6
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Processor Intel® Core™ i5 12500T
Graphics Intel® UHD Graphics 770
Memory 16 GB DDR4
Operating System Windows 11 Pro7
Hard drives 512 GB SSD
Connectivity standard Intel® Wi-Fi 6E AX211
Ports 1 headphone/microphone combo 1 SuperSpeed USB Type-A 10Gbps signaling rate 1 SuperSpeed USB Type-A 10Gbps signaling rate (charging) 1 SuperSpeed USB Type-C® 20Gbps signaling rate 1 power connector 1 RJ-45 1 SuperSpeed USB Type-A 10Gbps signaling rate 2 SuperSpeed USB Type-A 5Gbps signaling rate 2 DisplayPort™ 1.4 1 HDMI 2.1
HP Pro Mini 400 G9 Desktop PC
Latest Intel® processorAccomplish everything from minor tasks to complex projects with the latest Intel® processor.1
Flex ports for easy expansionConfigure or expand your Mini your way with flex ports for legacy or clean desk connectivity.
Protected by HP Wolf SecurityHP Wolf Security for Business creates a hardware-enforced, always-on, resilient defense.2
Windows 11Work anywhere without compromising on performance or security with Windows 11 powered by HP's collaboration and connectivity technology.High performance, high portabilityGet the exceptional combination of responsive performance, connectivity and speed with a 12th Gen Intel® Core™ processor that lets you launch, create, and connect fast and reliably.Security is your top priorityThe HP Wolf Pro Security Edition provides preconfigured enterprise-level PC protection for small and medium sized businesses.3
Advanced wireless connectivityGet a premium connectivity experience, even in crowded wireless networks, with a fast, reliable wireless connection. This Pro Mini 400’s gigabit data rate Wi-Fi 6E wireless LAN module supports HP Extended Range Wireless LAN.4Automatic recovery from firmware attacksFirmware attacks can completely devastate your PC. Stay protected with HP Sure Start, the self-healing BIOS that automatically recovers itself from attacks or corruption.5Work without interruptionKeep productivity high and downtime low with the fully integrated and automated features of the HP BIOSphere Gen6 firmware ecosystem. Your PCs have extra protection thanks to automatic updates and security checks.6
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Processor Intel® Core™ i5 12500T
Graphics Intel® UHD Graphics 770
Memory 16 GB DDR4
Operating System Windows 11 Pro7
Hard drives 512 GB SSD
Connectivity standard Intel® Wi-Fi 6E AX211
+Expand to see specifications
Operating system Windows 11 Pro7 Memory 16 GB DDR4-3200 MT/s (1 x 16 GB) Standard memory note Transfer rates up to 3200 MT/s. Memory Slots 2 DIMM Internal Storage 512 GB PCIe® Gen4 NVMe™ TLC M.2 SSD Storage type SSD Internal drive bays One 2.5" Processor Intel® Core™ i5-12500T (up to 4.4 GHz with Intel® Turbo Boost Technology, 18 MB L3 cache, 6 cores, 12 threads)8,9 Processor family 12th Generation Intel® Core™ i5 processor Chipset Intel® Q670 (vPro®)10 Weight 1.42 kg11 Graphics Integrated Graphics (integrated) Intel® UHD Graphics 770 Power 90 W external power adapter, up to 89% efficiency, active PFC Dimensions (W x D x H) 17.7 x 17.5 x 3.4 cm Form factor Mini Keyboard HP 125 Wired Keyboard Pointing device HP 125 Wired Mouse Audio Realtek ALC3252 codec, universal audio jack with CTIA and OMTP headset support Expansion slots 1 M.2 22301 M.2 228012 I/O Port location FrontRear Ports 1 headphone/microphone combo1 SuperSpeed USB Type-A 10Gbps signaling rate1 SuperSpeed USB Type-A 10Gbps signaling rate (charging)1 SuperSpeed USB Type-C® 20Gbps signaling rate1 power connector1 RJ-452 SuperSpeed USB Type-A 5Gbps signaling rate2 DisplayPort™ 1.41 HDMI 2.1 Network interface Intel® I219-LM GbE Wireless Intel® Wi-Fi 6E AX211 (2x2) and Bluetooth® 5.3 wireless card Security management Trusted Platform Module TPM 2.0 Embedded Security Chip shipped with Windows 10 (Common Criteria EAL4+ Certified)(FIPS 140-2 Level 2 Certified)HP Secure EraseHP Sure ClickHP Sure SenseAbsolute Persistence moduleHP Sure AdminHP BIOSphere Gen6HP Tamper LockHP Sure Start Gen7HP Platform Certificate On Device Installation13,14,15,16,17,18,19 Ecolabels EPEAT® registered Energy star certified ENERGY STAR® certified Country of origin Mexico(ABC, ABA)Thailand(ABC, ABA) Software included HP NotificationsHP PC Hardware Diagnostics UEFIHP Support AssistantHP Connection OptimizerHP Privacy SettingsHP PC Hardware Diagnostics WindowsHP Desktop Support UtilitiesHP Easy CleanTouchpoint Customizer for CommercialHP Easy Clean Keyboard DriverHSA Fusion for CommercialHSA Telemetry for CommercialHPX for CMIT Available software HP Smart Support Security Software Licenses HP Wolf Pro Security Edition (1 year)20 Management features HP Client Catalog (download)HP Driver Packs (download)HP Image Assistant (download)HP Client Management Script Library (download)HP Connect for Microsoft Endpoint ManagerHP Manageability Integration Kit (download)HP Patch Assistant (download)21,22,23 Manufacturer Warranty 1 year (1/1/0) limited warranty includes 1 year of parts and labor. No on-site repair. Terms and conditions vary by country. Certain restrictions and exclusions apply. Documents HP Pro Mini 400 G9 Desktop PC
Ports 1 headphone/microphone combo 1 SuperSpeed USB Type-A 10Gbps signaling rate 1 SuperSpeed USB Type-A 10Gbps signaling rate (charging) 1 SuperSpeed USB Type-C® 20Gbps signaling rate 1 power connector 1 RJ-45 1 SuperSpeed USB Type-A 10Gbps signaling rate 2 SuperSpeed USB Type-A 5Gbps signaling rate 2 DisplayPort™ 1.4 1 HDMI 2.1
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footnote1 Multicore is designed to improve performance of certain software products. Not all customers or software applications will necessarily benefit from use of this technology. Performance and clock frequency will vary depending on application workload and your hardware and software configurations. Intel’s numbering, branding and/or naming is not a measurement of higher performance.
footnote2 HP Wolf Security for Business requires Windows 10 or 11 Pro or higher, includes various HP security features and is available on HP Pro, Elite, Workstation, and RPOS products. See product details for included security features.
footnote3 This product includes a one (1) year license of HP Wolf Pro Security Edition which includes HP Sure Click Pro and HP Sure Sense Pro. The HP Wolf Pro Security Edition software is licensed under the license terms of the HP End User License Agreement (EULA) that can be found at: https://support.hp.com/us-en/document/ish_3875769-3873014-16 as modified by the following: “7. Term. Unless otherwise terminated earlier pursuant to the terms contained in this EULA, the license for the HP Wolf Pro Security Edition (HP Sure Sense Pro and HP Sure Click Pro) is effective upon activation and will continue for twelve (12) months thereafter (“Initial Term”). At the end of the Initial Term you may either (a) purchase a renewal license for the HP Wolf Pro Security Edition from HP.com, HP Sales or an HP Channel Partner, or (b) continue using the standard versions of HP Sure Click and HP Sure Sense at no additional cost with no future software updates or HP Support.”
footnote4 Wi-Fi 6E requires a Wi-Fi 6E router, sold separately, to function in the 6GHz band. Availability of public wireless access points limited. Wi-Fi 6E is backwards compatible with prior 802.11 specs and available in countries where Wi-Fi 6E is supported. Wi-Fi®️ supporting gigabit data rate is achievable with Wi-Fi 6E (802.11ax) when transferring files between two devices connected to the same router. Requires a wireless router, sold separately, that supports 160MHz channels.
footnote5 HP Sure Start Gen7 is available on select HP PCs and requires Windows 10 Pro and higher.
footnote6 HP BIOSphere Gen6 requires Windows 10 and is available on select HP Pro and Elite PCs. Features may vary depending on the platform and configurations.
footnote7 Not all features are available in all editions or versions of Windows. Systems may require upgraded and/or separately purchased hardware, drivers, software or BIOS update to take full advantage of Windows functionality. Windows is automatically updated and enabled. High speed internet and Microsoft account required. ISP fees may apply and additional requirements may apply over time for updates. See http://www.windows.com.
footnote8 Multi-core is designed to improve performance of certain software products. Not all customers or software applications will necessarily benefit from use of this technology. Performance and clock frequency will vary depending on application workload and your hardware and software configurations. Intel’s numbering, branding and/or naming is not a measurement of higher performance.
footnote9 Intel® Turbo Boost performance varies depending on hardware, software and overall system configuration. See http://www.intel.com/technology/turboboost/ for more information.
footnote10 For full Intel® vPro® functionality, Windows 10 Pro 64 bit, a vPro supported processor, vPro enabled chipset, vPro enabled wired LAN and/or WLAN card and TPM 2.0 are required. Some functionality requires additional 3rd party software in order to run. See http://intel.com/vpro
footnote11 Exact weight depends on configuration.
footnote12 1 M.2 slot for WLAN and 1 M.2 2280 slot for storage.
footnote13 HP Sure Click requires Windows 10 Pro or higher or Enterprise. See https://bit.ly/2PrLT6A_SureClick for complete details.
footnote14 HP Sure Sense is available on select HP PCs with Windows 10 Pro, Windows 10 Enterprise, Windows 11 Pro, or Windows 11 Enterprise OS.
footnote15 HP Sure Start Gen7 is available on select HP PCs and requires Windows 10 and higher.
footnote16 HP Sure Admin requires Windows 10 or higher, HP BIOS, HP Manageability Integration Kit from http://www.hp.com/go/clientmanagement and HP Sure Admin Local Access Authenticator smartphone app from the Android or Apple store.
footnote17 HP BIOSphere Gen6 features may vary depending on the platform and configuration.
footnote18 For the methods outlined in the National Institute of Standards and Technology Special Publication 800-88 "Clear" sanitation method. HP Secure Erase does not support platforms with Intel® Optane™.
footnote19 Absolute firmware module is shipped turned off and can only be activated with the purchase a license subscription and full activation of the software agent. License subscriptions can be purchased for terms ranging multiple years. Service is limited, check with Absolute for availability outside the U.S. Certain conditions apply. For full details visit: https://www.absolute.com/about/legal/agreements/absolute/.
footnote21 HP Connect for Microsoft Endpoint Manager is available from the Azure Market Place for HP Pro, Elite, Z and Point-of-Sale PCs managed with Microsoft Endpoint Manager. Subscription to Microsoft Endpoint Manager required and sold separately. Network connection required.
footnote22 HP Patch Assistant available on select HP PCs with the HP Manageability Kit that are managed through Microsoft System Center Configuration Manager. HP Manageability Integration Kit can be downloaded from http://www8.hp.com/us/en/ads/clientmanagement/overview.html .
footnote23 HP Manageability Integration Kit can be downloaded from http://www.hp.com/go/clientmanagement .
© Copyright 2025 HP Development Company, L.P. The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.
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(function () { var o = ccs_cc_args; o.push(["_SKey", "f3f3b27c"]); o.push(["_ZoneId", "6846cfb098"]); var sc = document.createElement("script"); sc.type = "text/javascript"; sc.async = true; sc.src = ("https:" == document.location.protocol ? "https://" : "https://") + "cdn.cs.1worldsync.com/jsc/h1ws.js"; var n = document.getElementsByTagName("script")[0]; n.parentNode.insertBefore(sc, n); })(); vsr_sku="DTHEW01188"; window.show_vsr_button ? show_vsr_button() : ""; Brand HP Environmental Certification Electronic Product Environmental Assessment Tool Climate+ (EPEAT Climate+) Environmental Compliance Waste Electrical and Electronic Equipment Directive (WEEE) Features Tool-less AccessLow Halogen Input Voltage 230 V AC Chipset Chipset Manufacturer Intel Chipset Model Q670 Display & Graphics Graphics Controller Manufacturer Intel Graphics Controller Model UHD Graphics 770 Graphics Memory Accessibility Shared Graphics Memory Technology DDR4 SDRAM General Information Brand Name HP Manufacturer HP Inc. Manufacturer Part Number B17T4AT#ABA Product Name Pro Mini 400 G9 Desktop PC Product Series Pro Mini 400 G9 Product Type Desktop Computer Input Devices Keyboard Localization English Interfaces/Ports Number of USB 3.2 Gen 1 Ports 2 Number of USB 3.2 Gen 2 Ports 3 Number of USB 3.2 Gen 2x2 Type-C Ports 1 Total Number of USB Ports 6 Memory Memory Configuration 1 x 16GB Memory Technology DDR4 SDRAM Standard Memory 16 GB Miscellaneous Energy Star Yes Environmental Certification TCO Certified 9.0 Environmental Compliance Restriction of Hazardous Substances (RoHS) Environmentally Friendly Yes Features Security Slot Package Contents Pro Mini 400 G9 Desktop PC Power Adapter Keyboard Mouse TCO Certified Yes Network & Communication Bluetooth Yes Ethernet Technology Gigabit Ethernet LAN Model I219-LM Wireless LAN Yes Wireless LAN Standard IEEE 802.11ax Operating System Operating System Windows 11 Pro Operating System Language English Operating System Platform Windows Physical Characteristics Depth 6.89" (175 mm) Form Factor Mini PC Height 1.34" (34 mm) Weight (Approximate) 3.13 lb (1420 g) Width 6.97" (177 mm) Power Description Input Voltage 120 V AC Maximum Power Supply Wattage 90 W Processor Maximum Turbo Speed 4.40 GHz Processor Core Hexa-core (6 Core) Processor Generation 12th Gen Processor Manufacturer Intel Processor Model i5-12500T Processor Speed 2 GHz Processor Threads 12 Processor Type Core i5 vPro Technology Yes Storage Drive Type SSD Solid State Drive Interface PCI Express NVMe 4.0 x4 SSD Form Factor M.2 Total Solid State Drive Capacity 512 GB Warranty Additional Warranty Information 1 year (1/1/0) limited warranty includes 1 year of parts and labor. No on-site repair. Limited Warranty 1 Year Brand HP Environmental Certification Electronic Product Environmental Assessment Tool Climate+ (EPEAT Climate+) Environmental Compliance Waste Electrical and Electronic Equipment Directive (WEEE) Features Tool-less AccessLow Halogen Input Voltage 230 V AC Chipset Chipset Manufacturer Intel Chipset Model Q670 Display & Graphics Graphics Controller Manufacturer Intel Graphics Controller Model UHD Graphics 770 Graphics Memory Accessibility Shared Graphics Memory Technology DDR4 SDRAM General Information Brand Name HP Manufacturer HP Inc. Manufacturer Part Number B17T4AT#ABA Product Name Pro Mini 400 G9 Desktop PC Product Series Pro Mini 400 G9 Product Type Desktop Computer Input Devices Keyboard Localization English Interfaces/Ports Number of USB 3.2 Gen 1 Ports 2 Number of USB 3.2 Gen 2 Ports 3 Number of USB 3.2 Gen 2x2 Type-C Ports 1 Total Number of USB Ports 6 Memory Memory Configuration 1 x 16GB Memory Technology DDR4 SDRAM Standard Memory 16 GB Miscellaneous Energy Star Yes Environmental Certification TCO Certified 9.0 Environmental Compliance Restriction of Hazardous Substances (RoHS) Environmentally Friendly Yes Features Security Slot Package Contents Pro Mini 400 G9 Desktop PC Power Adapter Keyboard Mouse TCO Certified Yes Network & Communication Bluetooth Yes Ethernet Technology Gigabit Ethernet LAN Model I219-LM Wireless LAN Yes Wireless LAN Standard IEEE 802.11ax Operating System Operating System Windows 11 Pro Operating System Language English Operating System Platform Windows Physical Characteristics Depth 6.89" (175 mm) Form Factor Mini PC Height 1.34" (34 mm) Weight (Approximate) 3.13 lb (1420 g) Width 6.97" (177 mm) Power Description Input Voltage 120 V AC Maximum Power Supply Wattage 90 W Processor Maximum Turbo Speed 4.40 GHz Processor Core Hexa-core (6 Core) Processor Generation 12th Gen Processor Manufacturer Intel Processor Model i5-12500T Processor Speed 2 GHz Processor Threads 12 Processor Type Core i5 vPro Technology Yes Storage Drive Type SSD Solid State Drive Interface PCI Express NVMe 4.0 x4 SSD Form Factor M.2 Total Solid State Drive Capacity 512 GB Warranty Additional Warranty Information 1 year (1/1/0) limited warranty includes 1 year of parts and labor. No on-site repair. Limited Warranty 1 Year
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Defective Exchange Period 30 Days
Defective Exchange Period 30 Days For Quebec Residents – Disclosure under the Consumer Protection Act In accordance with Bill 29, Canada Computers does not guarantee the availability of replacement parts, repair services, or maintenance information for any products. Coverage provided under any Canada Computers Tech Care Plans and applicable manufacturer warranties, if any, remains unaffected. For information regarding a manufacturer’s availability guarantee, please contact the manufacturer directly.
- Intel Core i5 12th Gen i5-12500T
- vPro Technology
- 16 GB
- 512 GB SSD
- Mini PC
- Intel Q670 Chip
- Windows 11 Pro
- Intel UHD Graphics 770 DDR4 SDRAM
- IEEE 802.11ax
- 90 W
The 30-Second Version
A tiny office PC that nails reliability and port selection but punishes you the moment you ask it to do more than basic work. Only worth it if you score the $840 deal and never plan to game or edit anything.
Overview
HP's Pro Mini 400 G9 is a classic cube of business practicality. It's not here to turn heads or set benchmark records. It's here to sit quietly under your monitor, run Office apps, and not bother you. And for that, it does a solid job. With vPro manageability and a decent port selection, it's built for IT departments more than home users.
But the moment you ask anything beyond light productivity, the cracks show. An integrated GPU that's stuck in the last decade, DDR4 RAM in a world moving to DDR5, and a mediocre CPU leave it gasping for breath on anything remotely demanding. It's a one-trick pony, and that trick is 'reliable office drone.'
Performance
The i5-12500T is perfectly polite for email and spreadsheets, but it's middle-of-the-pack at best in our database (37th percentile). Multitasking with a dozen browser tabs is fine, but throw in a large Excel model or a video call with background blur, and you'll notice the stutter. The real letdown is the Intel UHD Graphics 770, which sits in the 32nd percentile. You can forget gaming entirely. Even editing photos feels sluggish at times. It's a business PC through and through, and that means graphics were an afterthought.
Pros & Cons
Pros
- Tiny, clean design fits anywhere 89th
- vPro support is a lifesaver for IT admins 72th
- Six USB-A ports plus HDMI and DisplayPort cover legacy and modern displays 66th
- Efficient 90W power draw keeps energy bills low
Cons
- Integrated graphics are borderline unusable for anything beyond 4K video playback 29th
- DDR4 RAM instead of faster, more efficient DDR5 32th
- 512GB SSD is stingy for the price some vendors charge
- No Thunderbolt port limits docking options
Specifications
Full Specifications
Processor
| CPU | Intel Core i5 12500T |
| Cores | 6 |
| Frequency | 2.0 GHz |
| L3 Cache | 18 MB |
Graphics
| GPU | Intel UHD Graphics 770 |
| Type | integrated |
| VRAM Type | Shared |
Memory & Storage
| RAM | 16 GB |
| RAM Generation | DDR4 |
| Storage | 512 GB |
| Storage Type | NVMe SSD |
Build
| Form Factor | mini |
| PSU | 90 |
| Weight | 1.4 kg / 3.1 lbs |
Connectivity
| USB-C Ports | 1 |
| USB Ports | 5 |
| HDMI | 1x HDMI 2.1 |
| DisplayPort | 2x DisplayPort 1.4 |
| Wi-Fi | Wi-Fi 6E |
| Bluetooth | Bluetooth 5.3 |
| Ethernet | Gigabit Ethernet |
System
| OS | Windows 11 Pro |
Value & Pricing
Pricing is all over the place. We've seen it listed anywhere from $840 up to $1169. At the low end, if you absolutely need a vPro Mini PC with legacy ports, it's a fair deal. At the high end, you're getting ripped off. Shop around and don't pay more than $900 for this configuration.
Price History
vs Competition
The elephant in the room is the Apple Mac mini M4. For around the same money (or less, in some configs), Apple gives you an absolute beast of a chip that crushes the i5-12500T in both CPU and GPU performance, sips power, and even runs fanless. But the Mac mini ditches USB-A and lacks native vPro management. If your office runs on Windows and needs that hardware-level security and remote manageability, the HP makes sense. Otherwise, the Mac mini is just a better computer by nearly every measure. Among Windows competitors, the Dell OptiPlex Micro or Lenovo ThinkCentre Tiny are cut from the same cloth, and we'd compare those if you're locked into a Windows ecosystem.
| Spec | HP Pro Mini 400 G9 | ASUS Republic of Gamers GM700TZ-BS978 | Lenovo Legion Tower 5i Legion Tower 5i Gen 10 | Dell Tower Plus DEBT2250-7177BLK-PUS | MSI Aegis RS2 Aegis RS2 AI | Apple Mac mini M4 |
|---|---|---|---|---|---|---|
| CPU | Intel Core i5 12500T | AMD Ryzen 9 9950X | Intel Core Ultra 7 265F | Intel Core Ultra 7 265 | Intel Core Ultra 7 265K | Apple M4 |
| RAM (GB) | 16 | 64 | 32 | 32 | 32 | 16 |
| Storage (GB) | 512 | 2048 | 2048 | 1024 | 2048 | 256 |
| GPU | Intel UHD Graphics 770 | AMD Radeon RX 9070 XT | NVIDIA GeForce RTX 5070 | NVIDIA GeForce RTX 5070 | NVIDIA GeForce RTX 5070 | Apple M4 10-core |
| Form Factor | mini | mid-tower | mid-tower | mid-tower | mid-tower | mini |
| Psu W | 90 | 850 | 850 | 750 | 750 | - |
| OS | Windows 11 Pro | Windows 11 Home | Windows 11 Home | Windows 11 Home | Windows 11 Home | macOS Sequoia 15.1 |
| Compare | Compare | Compare | Compare | Compare |
| Product | Cpu | Gpu | Ram | Port | Storage | Reliability | Social Proof |
|---|---|---|---|---|---|---|---|
| HP Pro Mini 400 G9 | 36.9 | 31.8 | 29.3 | 65.9 | 39.6 | 71.6 | 89 |
| ASUS Republic of Gamers GM700TZ-BS978 Compare | 98.8 | 77.4 | 94.2 | 97.6 | 90.9 | 39.9 | 71.6 |
| Lenovo Legion Tower 5i Legion Tower 5i Gen 10 Compare | 86.6 | 81.4 | 81.9 | 89.9 | 90.9 | 71.6 | 95.3 |
| Dell Tower Plus DEBT2250-7177BLK-PUS Compare | 88.8 | 81.4 | 77.8 | 98.7 | 72.6 | 71.6 | 82.7 |
| MSI Aegis RS2 Aegis RS2 AI Compare | 95.8 | 81.4 | 87.5 | 96.8 | 83.4 | 39.9 | 74 |
| Apple Mac mini M4 Compare | 55.6 | 95.5 | 29.3 | 97 | 12.6 | 99.3 | 99.1 |
Common Questions
Q: Can I upgrade the RAM and storage later?
Yes. The Pro Mini 400 G9 uses standard DDR4 SO-DIMM slots, so you can bump it up to 64GB later. The 512GB NVMe SSD is also replaceable, but note you'll likely void warranty if you crack it open yourself. Check with HP first.
Q: Is this good for dual monitor setups?
Absolutely. You get one HDMI 2.1 and one DisplayPort out of the box, so two monitors are no sweat. You can even run a third via the USB-C port using an adapter, though that port isn't Thunderbolt.
Q: Can it handle light gaming like Minecraft or Fortnite?
Barely. The Intel UHD Graphics 770 is integrated and very weak. You might get playable frame rates in Minecraft at low settings, but forget Fortnite or anything remotely modern. If gaming's on your list, look elsewhere.
Who Should Skip This
If you're looking for a home PC to play games, edit video, or even just feel snappy with a dozen heavy browser tabs, this isn't it. Go get a Mac mini M4 or a compact gaming PC instead. The integrated graphics here are a major bottleneck, and you'll be disappointed.
Verdict
The HP Pro Mini 400 G9 is a focused tool for a focused job. If you're an IT manager provisioning desks with managed, compact Windows boxes that handle basic office tasks, it's a reliable choice. For everyone else, the weak graphics, aging DDR4, and inflated pricing at many retailers make it a tough sell. There are simply better, newer mini PCs out there that don't compromise this hard on performance.