Beelink ME mini NAS: Drive Slots, SSDs and fnOS — What Fits and What to Buy

Compatibility data on this site last refreshed 2026-11-03 · reading time ~3 min

The Beelink ME mini is the palm-sized cube NAS that made fnOS hardware mainstream: a 99×99×99 mm all-flash box with six M.2 slots, an Intel N150 processor and dual 2.5GbE. In China it ships as the first officially fnOS-branded hardware (Fnnas × Beelink, August 2025); internationally Beelink sells it with Windows preloaded, and it runs fnOS, Proxmox, TrueNAS or plain Linux just as well.

Slot layout — the part every buyer gets wrong

• Six M.2 slots total, in two different roles. Slot 4 (marked SSD4) is the system slot: M.2 2280, PCIe 3.0 x2, and it DOES accept a SATA III M.2 SSD.
• The five storage slots are M.2 2280 PCIe 3.0 x1 each — NVMe only, NOT compatible with SATA M.2 SSDs.
• Each storage slot takes up to 4 TB, so storage tops out at 20 TB across five slots (Beelink markets 24 TB counting the sixth slot).
• All slots accept 2230, 2242 and 2280 lengths of the matching type.
• There is also 64 GB eMMC on board — enough to host the OS itself on some configurations.

What that means when you buy SSDs

Three practical rules. One: only the SSD4 slot takes SATA M.2 drives — every other slot needs NVMe. Two: the storage slots are PCIe 3.0 x1 (~1 GB/s), so paying for a PCIe 5.0 rocket is wasted money; a solid PCIe 3.0/4.0 value drive like the Crucial P3 Plus (the exact drive Beelink bundles) is the right class. Three: 4 TB is the per-slot ceiling — two 4 TB drives give you a mirrored 4 TB of very fast, silent storage.

SSD picks for the ME mini

• Beelink ME mini (12 GB/16 GB LPDDR5, 64 GB eMMC base) — check ME mini price on Amazon
• Crucial P3 Plus 4 TB NVMe (officially bundled by Beelink, PCIe 3.0-class value) — check price on Amazon
• WD Red SN700 / Samsung 990 tier: worthwhile only for the SSD4 system slot where you want endurance; storage slots are bandwidth-capped anyway.

fnOS on the ME mini

The Chinese configuration ships with fnOS preinstalled and uses the SSD4 slot (or eMMC) for the system — consistent with fnOS's installer defaults elsewhere (64 GB system partition recommended, 8 GB minimum). Western buyers installing fnOS themselves follow the standard installer: USB install media, Secure Boot off, wired network required. Our fnOS drive guide covers the no-whitelist policy; for SSD-class storage the same logic applies — fnOS does not restrict which NVMe drives you use.

Who the ME mini is for

Silence, size and power: no 3.5" spinning rust means the cube is effectively silent, and N150 sips power. The trade-offs are capacity (20-24 TB ceiling at NAS-HDD pricing per TB it is much pricier) and CPU (four small cores — fine for file serving, containers and a couple of streams; not a VM farm). If you need 100 TB of cheap rust, a 4-bay SATA NAS like the Fnnas BASIC4 or EVO4 — or any Synology/QNAP box in our database — is the better tool.

Where to check prices

The ME mini and the Crucial P3 Plus bundle drives are both stocked on Amazon internationally — check ME mini pricing · check Crucial P3 Plus 4 TB pricing (affiliate links; see our footer disclosure).

Quick answers

Check your exact model

Compatibility is per machine and per part number. Pick your model for its full official drive list:

Related

• fnOS official hardware line-up
• fnOS drive strategy
• fnOS vs TrueNAS vs Unraid vs OMV