Best slim desktop PCs upgradable to 64GB RAM
Researched by Deal.ai's shopping agent across stores on November 11, 2026. Prices below are today's.
Top pick: MINISFORUM UM870 Slim. It's the smallest of the bunch and its dual-channel DDR5 slots take up to 96GB, so 64GB is easy — you just add two sticks yourself. The Ryzen 7 8745H and Radeon 780M handle everyday work and light gaming, and it's the best value here.
Who the others suit:
- Beelink SER8 — same idea, stronger cooling and a bigger RAM ceiling, for people who want headroom and a well-reviewed mini PC.
- Intel NUC 12 Pro (slim, barebone) — for tinkerers: you choose the RAM and SSD, and it's a proven slim chassis.
- Lenovo ThinkCentre Neo Ultra Gen 2 — a compact business box that already ships with 64GB, if you'd rather not open it up.
- Minisforum AI X1 Pro — the premium option, also pre-loaded with 64GB.
Skip the HP OmniDesk Slim and GEEKOM Air12 if 64GB matters — their RAM isn't listed as user-upgradable.
The picks
- #1
MINISFORUM UM870 Slim
- Processor: AMD Ryzen 7 8745H (8C/16T, up to 4.9GHz)
- Graphics: AMD Radeon 780M
- L3 cache: 16 MB
- Memory support: dual channel DDR5 RAM (up to 96GB)
- Storage support: PCIe 4.0 M.2 2280 SSD (up to 4TB)
- HDMI output: HDMI 2.1 (8K@60Hz)
Ask our shopping agent
It checks today's price at every store, compares the alternatives and answers in about a minute.
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