Best NAS Devices
22 products ranked across 136 cited reviews, videos and discussions · Updated 23 Sept 2026
On the stierproducts nas devices board, Synology DiskStation DS225+ ranks #1 in S tier, ahead of TerraMaster F4-424 Pro (#2, S tier) and Asustor Drivestor 4 Gen2 (AS1204T) (#3, A tier). The board ranks 22 nas devices from S (best) to F (avoid), last researched 23 Sept 2026, drawing on 136 cited reviews, videos and discussions. Placed in the bottom tiers as ones to avoid: UniFi UNAS 2, Asustor Drivestor 2 Gen2 (AS1202T), Synology DiskStation DS423+, and 8 others.
#12 1 of 3 research runs entered this as a product to avoid rather than a pick. UniFi UNAS 2
#13 Asustor Drivestor 2 Gen2 (AS1202T)
#14 3 of 4 research runs entered this as a product to avoid rather than a pick. Synology DiskStation DS423+
#15 1 of 2 research runs entered this as a product to avoid rather than a pick. TerraMaster F2-223
#16 4 of 12 research runs entered this as a product to avoid rather than a pick. Synology BeeStation
#17 5 of 9 research runs entered this as a product to avoid rather than a pick. Synology DiskStation DS224+
#18 1 of 3 research runs entered this as a product to avoid rather than a pick. UnifyDrive UT2
#19 5 of 10 research runs entered this as a product to avoid rather than a pick. QNAP TS-464
#20 2 of 5 research runs entered this as a product to avoid rather than a pick. Synology DiskStation DS223
#21 2 of 7 research runs entered this as a product to avoid rather than a pick. Synology DS223j
#22 3 of 5 research runs entered this as a product to avoid rather than a pick. Synology DiskStation DS223j
Frequently asked questions
Synology DiskStation DS225+ sits at #1 in the S tier of our consolidated board, ranked across independent research runs over 136 cited reviews, videos and discussions. Wirecutter's current top pick and the best-supported firmware platform in the class. The safest device to own for a decade.
TerraMaster F4-424 Pro ranks #2 (S tier). TechRadar's top choice for most users: "the TerraMaster F4-424 Pro is our top choice for most users. During tests, we found this model delivered fast, secure file transfer." Four bays, modern Intel-class silicon and 2.5 GbE give it hardware headroom that the budget Synology boxes lack, and TechRadar's testing verdict is emphatic. It sits below the Synology plus boxes here because TerraMaster's TOS firmware and support track record is shorter and less proven over the long haul.
Our research places UniFi UNAS 2, Asustor Drivestor 2 Gen2 (AS1202T), Synology DiskStation DS423+, TerraMaster F2-223, Synology BeeStation, Synology DiskStation DS224+, UnifyDrive UT2, QNAP TS-464, Synology DiskStation DS223, Synology DS223j, Synology DiskStation DS223j in the bottom tiers (D/F). UniFi UNAS 2: Ranks sixth thanks to its integrated software that eases setup and its recognition on multiple value-of-the-year lists.
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