ASUS ExpertCenter PN54 Mini Barebone Review

A speed demon trapped in a tiny box with no storage future. Fantastic for a basic, fixed-usage office PC, but a frustrating dead end for anyone who might need to upgrade.

The Asus ExpertCenter PN54 is a weird little box that's trying to be two things at once, and it mostly works. On one hand, it's a tiny, barebones mini PC with a killer CPU and modern ports, perfect for tucking behind a monitor. On the other, it's being marketed as an 'AI' desktop for demanding workloads, which feels like a stretch given its single storage slot and integrated graphics. The one thing to know? This is a fantastic, future-proofed brain for a basic office or development machine, but you absolutely must bring your own storage and RAM.

The performance story is a tale of two halves. That AMD Ryzen AI 5 340 CPU is a monster, landing in the 99th percentile in our database. It'll chew through code compilation, spreadsheets, and multitasking without breaking a sweat. But then you look at the GPU, sitting in the 41st percentile, and remember this is still integrated Radeon graphics. It's fine for driving displays, but don't expect to do any serious gaming or GPU-accelerated work. The real shocker is the storage score in the 5th percentile. With just one M.2 slot, your upgrade path is a dead end.

At around $540 for the barebones unit, the value is decent but not amazing. You're paying a premium for that tiny size and the top-tier CPU. Once you add a decent 32GB DDR5 kit and a 1TB NVMe SSD, you're looking at closer to $750-$800 total. For that money, you could get a more capable small-form-factor tower with better upgradeability. It's worth it only if the absolute smallest footprint is your top priority.

This sits in a strange spot. It's not competing with the gaming towers like the HP Omen or Alienware Aurora—those have real GPUs. Its real competition is other mini PCs. Compared to something like an Intel NUC, the Asus has a better CPU and newer connectivity (Wi-Fi 7 vs. Wi-Fi 6E). But if you need more than one storage drive, look at slightly larger mini PCs from Minisforum or Beelink that offer dual M.2 slots. For most people, a compact Micro-ATX tower would offer way more flexibility for the same total cost.

If you're a gamer, a video editor, or anyone who needs a dedicated GPU, this isn't it. Go get a proper desktop with a discrete graphics card. Also, if you're the type who fills up hard drives and likes to upgrade piece by piece, skip this. The single storage slot will drive you nuts. Look at a compact tower instead.

We can recommend the Asus PN54, but with a giant asterisk. If you need the absolute smallest possible desktop for general office work, light development, or as a home server, and you're okay with a single storage drive forever, it's a great pick. The CPU and ports are fantastic. For everyone else—especially if you think you might need more storage down the line—this is a hard pass. That single M.2 slot is a design flaw for a 'workstation'.