HP HP Pro 400 G9 Mini Desktop Computer Review

The HP Pro 400 G9 Mini Desktop is a compact, business-ready PC ideal for basic office tasks in tight spaces. It packs a modern Intel i5 processor and 16GB of DDR5 RAM but is held back by its small 256GB SSD and integrated graphics. It's a good value at its lowest price, but shop around.

If you're looking for a compact desktop that can handle spreadsheets, emails, and web browsing without taking up your whole desk, the HP Pro 400 G9 Mini is worth a look. This isn't a flashy gaming rig. It's a small, business-focused PC powered by an Intel Core i5-14500T processor with 16GB of DDR5 RAM and a 256GB SSD. It comes with Windows 11 Pro and a wired keyboard and mouse, so you can plug it in and get to work. For under $700 at its lowest price, it's a straightforward option for a home office or a small business needing reliable, space-saving hardware.

The Intel Core i5-14500T is a 14-core processor, but it's a low-power 'T' series chip with a base clock of 1.7GHz. In our database, its CPU performance lands in the 44th percentile for desktops. That means it's solidly mid-pack. It'll handle office apps, dozens of browser tabs, and video calls without breaking a sweat, but it's not built for heavy lifting like video editing or 3D rendering. The integrated Intel UHD 770 graphics are fine for driving up to three monitors (thanks to the DisplayPort and HDMI outputs), but they're in the 24th percentile for a reason. Don't expect to play anything more demanding than solitaire. The 256GB SSD is also on the small side (18th percentile), so you'll likely need to add more storage.

The value here depends entirely on the price you find. We've seen it listed from $680 to over $1,059. At the low end, it's a decent deal for a complete, compact office system with modern specs. At the high end, it's hard to justify. For around $700, you're getting a turnkey solution. For anything closer to a grand, you could build or buy a more powerful traditional desktop with a better CPU and more storage.

This isn't competing with the gaming desktops like the HP Omen or Alienware Aurora listed in our data. That's like comparing a scooter to a motorcycle. For a mini PC, a closer competitor might be something like a Lenovo ThinkCentre Tiny or a Dell OptiPlex Micro. Those often offer similar business-grade reliability in a small box. The key trade-off with all of them is expandability. You're sacrificing the ability to add a powerful graphics card or multiple hard drives for the tiny footprint. If you need more graphics power in a small form factor, you'd have to look at much more expensive mini gaming PCs with discrete GPUs.

Skip this if you're a gamer, video editor, or anyone who needs serious computing power. The integrated graphics and low-power CPU simply won't cut it. Also, skip it if you need lots of built-in storage, as 256GB fills up fast. For those users, a traditional mid-tower desktop with a discrete graphics card and room for multiple drives is a much better fit, even if it takes up more space.

Should you buy the HP Pro 400 G9 Mini? Yes, but only if your needs are very specific. Buy this if you need a dead-simple, space-efficient computer for general office work, and you find it for a price at or near the $680 mark. It's a 'set it and forget it' machine for running a business front desk, a kiosk, or a home office where desk space is precious. The included peripherals and OS make it hassle-free. But if you need to do anything graphically intensive, play games, or store a large media library locally, you should look elsewhere.