Barebone Kits and Compact PCs

What barebone means and who it suits

A barebone system is a computer with the hard work done and the personal parts left out. It usually includes a chassis, board and power supply, sometimes a processor, and expects you to add memory, storage and an operating system. This suits people who want a small home server, media box or office desktop and who prefer to choose their own RAM and drive. Read the title for words like no memory, no SSD or no OS.

Two sub-categories cover most listings. Mini PC barebone systems are palm-sized to book-sized boxes using laptop-style memory, while desktop barebone systems are larger chassis with more expansion. Mounts, adapters and other add-ons for these systems are grouped separately, and dedicated hashing machines and riser kits sit in their own sub-category, because they are a different purchase from a general-purpose PC and do not run a normal desktop operating system.

First checks: processor, memory type and ports

Start with the processor class, since it fixes performance and power draw. Look at the memory line next: SO-DIMM slots take laptop-style modules, DDR4 and DDR5 are not interchangeable, and some systems have memory soldered to the board with no way to upgrade. Note the maximum supported memory, which may be lower than you expect, and whether a storage slot is free for the drive you plan to fit.

Then check the connections. A fast wired network port, Wi-Fi 6E or Wi-Fi 7, Bluetooth and the mix of USB4, HDMI and DisplayPort decide how the box fits your desk or rack. Compact cases use small fans, so confirm noise and ventilation needs, and check whether the power adapter is included and rated for the processor you choose.

Questions about Barebone Kits and Compact PCs

What is the difference between a barebone and a ready-to-use mini PC?

A barebone leaves out parts such as memory, storage or the operating system, which you add yourself. A ready-to-use mini PC includes them and works once plugged in. Read the title to see which one you are buying.

Do I need to buy an operating system for a barebone?

Often yes. Many barebones ship without one, while a few list Windows in the title. You can install a free Linux distribution instead, or buy a license, but you need to supply it.

Can I upgrade the memory in a mini PC later?

Only when it has memory slots. Many mini PCs use SO-DIMM slots you can fill, while others have soldered memory that cannot change. Check the listing for slot count and maximum memory.