NAS Drive Compatibility

Best 2-bay NAS — every model, every vendor, one table

105 NAS models ship with 2 drive bays across QNAP, Synology, TerraMaster, UGREEN and UniFi. Specs from the vendors' own sheets; the "drives listed" column is each vendor's official compatibility-list depth — our data, read daily, refreshed 2026-11-03.

105
2-bay models
5
Vendors
727
Deepest list (Synology DS215+)
12
Drives shared across this class

How to choose a 2-bay NAS in 2026

Two bays is the classic home NAS: RAID 1 mirroring, low power draw, quiet enough for a living room. The 2026 value fight is between Synology's DS224+/DS225+ (~$300, polished DSM, modest J-series CPU and 2 GB RAM) and UGREEN's DXP2800 (~$370-380, Intel N100, 8 GB DDR5, 2.5GbE, two M.2 slots) — the UGREEN wins on hardware per dollar, the Synology on software maturity and quieter idle. QNAP's TS-262/TS-264 and TerraMaster's F2-424/F2-423 sit between those poles, with the DXP2800 GT (Ryzen R2514, 10GbE) leading the performance end.

Watch the drive-list depth when you pick: two-bay RAID 1 rebuilds punish SMR drives hard, so every pick on this page leans CMR — check each model page for the vendor's own tested list.

Current-generation picks

The models you can actually buy new today — one card each, with the official drive-list depth most spec sheets never show:

Synology DS224+ Intel Celeron J4125 · DDR4 2 GB 103 drives on the official HCL Synology DS225+ Intel Celeron J4125 · DDR4 2 GB 41 drives on the official HCL Synology DS223 Realtek RTD1619B · DDR4 2 GB 131 drives on the official HCL QNAP TS-262 Intel Celeron N4505 2-core/2-threa · 4 GB RAM 1 328 drives on the official HCL QNAP TS-264 Intel Celeron N5095 4-core/4-threa · 8 GB SODIMM DDR4 388 drives on the official HCL QNAP TS-233 ARM 4-core Cortex-A55 2.0GHz proce · 2 GB on board (n 345 drives on the official HCL UGREEN DXP2800 — 54 drives on the official HCL UGREEN DXP2800 GT — 36 drives on the official HCL UGREEN DH2300 — 45 drives on the official HCL Ubiquiti UNAS 2 — (2) 2.5"/3.5" HDD/SSD bays Ubiquiti UDM Pro Max Quad-core ARM Cortex-A57 @ 2.0 GHz · 8 GB (2) 3.5" NVR HDD bays + built-in 128 GB SSD Zspace Q2C — · up to 32 TB Official per-model drive requirements → Zspace Z2 Pro — · up to 30 TB Official per-model drive requirements → Zspace Z2 Ultra — · up to 32 TB Official per-model drive requirements → TieNiu Zero 1 Rockchip RK3568 4-core 2.0 GHz · 4 GB DDR4 Up to 48 TB · official specs →

All 2-bay models, ranked by official drive-list depth

CPU/RAM shown where the vendor publishes them (Synology/QNAP specs); "drives listed" = rows on the vendor's own compatibility tool. UniFi consoles follow spec-based requirements instead of a whitelist — their rows link to the requirement breakdown.

ModelVendorCPURAMDrives listed
Synology DS215+ Synology Annapurna Labs Alpine AL-212 DDR3 1 GB 727
Synology DS216+ Synology Intel Celeron N3050 DDR3 1 GB 668
Synology DS216+II Synology Intel Celeron N3060 DDR3 1 GB 668
Synology DS213air Synology Marvell Kirkwood 88F6282 DDR3 256 MB 666
Synology DS211 Synology Marvell Kirkwood 88F6282 DDR3 256 MB 655
Synology DS211j Synology Marvell Kirkwood 88F6281 DDR2 128 MB 654
Synology DS212j Synology Marvell Kirkwood 88F6281 DDR2 256 MB 651
Synology DS213 Synology Marvell Kirkwood 88F6282 DDR3 512 MB 618
Synology DS211+ Synology Marvell Kirkwood 88F6282 DDR3 512 MB 615
Synology DS214play Synology Intel Atom CE5335 DDR3 1 GB 610
Synology DS212+ Synology Marvell Kirkwood 88F6282 DDR3 512 MB 607
Synology DS212 Synology Marvell Kirkwood 88F6282 DDR3 256 MB 601
Synology DS210j Synology Marvell Kirkwood 88F6281 DDR2 128 MB 563
Synology DS210+ Synology Freescale MPC8533E DDR 512 MB 562
Synology DS216se Synology Marvell Armada 370 88F6707 DDR3 256 MB 524
Synology DS218+ Synology Intel Celeron J3355 DDR3L SODIMM 2 GB 520
Synology DS214 Synology Marvell Armada XP MV78230 DDR3 512 MB 513
QNAP TS-251+ QNAP — — 513
Synology DS214+ Synology Marvell Armada XP MV78230 DDR3 1 GB 505
Synology DS214se Synology Marvell Armada 370 88F6707 DDR3 256 MB 494
QNAP TS-231K QNAP AnnapurnaLabs, an Amazon company Alpine AL214, 4-core, 1.7GHz 1GB DDR3 476
QNAP TS-231P3 QNAP AnnapurnaLabs, an Amazon company Alpine AL314, 4-core, 1.7GHz 4GB SODIMM DDR3 476
Synology DS213j Synology Marvell Armada 370 88F6707 DDR3 512 MB 474
Synology DS218j Synology Marvell Armada 385 88F6820 DDR3 512 MB 471
Synology DS213+ Synology Freescale P1022 DDR3 512 MB 434
QNAP TS-253D QNAP Intel Celeron J4125 4-core/4-thread processor, burst up to 2.7 GHz 4 GB SODIMM DDR4 432
QNAP TS-231P2 QNAP AnnapurnaLabs Alpine AL314 32-bit ARM Cortex-A15 4-core 1.7GHz processor 1 GB SODIMM DDR3L RAM 430
Synology DS216 Synology Marvell Armada 385 88F6820 DDR3 512 MB 422
Synology DS216j Synology Marvell Armada 385 88F6820 DDR3 512 MB 419
QNAP TS-231P QNAP AnnapurnaLabs, an Amazon company Alpine AL212, 2-core, 1.7GHz 1GB DDR3 412
QNAP TS-253E QNAP Intel Celeron J6412 4-core/4-thread processor, burst up to 2.6 GHz 8 GB SODIMM DDR4 2 404
QNAP TS-231+ QNAP — — 403
Synology DS216play Synology STM STiH412 DDR3 1 GB 396
QNAP TS-253 Pro QNAP — — 396
QNAP TS-251 QNAP — — 393
QNAP TS-253A QNAP — — 391
QNAP TS-264 QNAP Intel Celeron N5095 4-core/4-thread processor, burst up to 2.9 GHz 8 GB SODIMM DDR4 1 388
Synology DS215j Synology Marvell Armada 375 88F6720 DDR3 512 MB 380
QNAP TR-002 QNAP Micro processor with hardware RAID — 370
QNAP TS-253B QNAP Intel Celeron J3455 4-core 1.5 GHz processor (burst up to 2.3 GHz) 4 GB SODIMM DDR3L 357
Synology DS218play Synology Realtek RTD1296 DDR4 1 GB 352
QNAP TS-253Be QNAP Intel Celeron J3455 4-core 1.5 GHz processor (burst up to 2.3 GHz) 2 GB SODIMM DDR3L 346
Synology DS218 Synology Realtek RTD1296 DDR4 2 GB 345
QNAP TS-233 QNAP ARM 4-core Cortex-A55 2.0GHz processor 2 GB on board (non-expandable) 1 345
QNAP TS-251B QNAP Intel Celeron J3355 2-core 2.0 GHz processor (burst up to 2.5 GHz) 4 GB SODIMM DDR3L 345
QNAP TS-212-E QNAP — — 337
QNAP TS-212P QNAP — — 337
QNAP TS-220 QNAP — — 333
QNAP TS-221 QNAP — — 333
QNAP TS-219P II QNAP — — 330
QNAP TS-219P+ QNAP — — 330
QNAP TS-262 QNAP Intel Celeron N4505 2-core/2-thread processor, burst up to 2.9 GHz 4 GB RAM 1 328
QNAP TS-231 QNAP — — 321
QNAP TS-216G QNAP ARM 4-core Cortex-A55 2.0GHz processor 4 GB on board (non-expandable) 1 320
Synology DS209+ Synology — — 317
Synology DS209 Synology — — 316
Synology DS209+II Synology — — 316
QNAP TS-269L QNAP — — 286
Synology DS220j Synology Realtek RTD1296 DDR4 512 MB 285
Synology DS220+ Synology Intel Celeron J4025 DDR4 2 GB 283
QNAP TS-269 Pro QNAP — — 278
QNAP TS-212 QNAP — — 241
QNAP TS-210 QNAP — — 234
QNAP TS-219 QNAP — — 234
QNAP TS-219P QNAP — — 234
QNAP TS-251D QNAP Intel Celeron J4025/J4005 2-core/2-thread processor, burst up to 2.9/2.7 GHz 4 GB SODIMM DDR4 227
QNAP TS-230 QNAP Realtek RTD1296 4-core 1.4GHz processor 2 GB DDR4, not expandable 1 222
Synology DS209j Synology — — 218
TerraMaster F2-423 TerraMaster — — 207
TerraMaster F2-424 TerraMaster — — 207
TerraMaster F2-425 Plus TerraMaster — — 207
QNAP TS-251A QNAP — — 204
QNAP HS-264 QNAP — — 198
QNAP TS-239 Pro II QNAP — — 183
QNAP TS-239 Pro II+ QNAP — — 183
QNAP TS-259 Pro QNAP — — 183
QNAP TS-259 Pro+ QNAP — — 183
QNAP TS-239 Pro QNAP — — 180
QNAP TAS-268 QNAP — — 173
TerraMaster F2-210 TerraMaster — — 172
TerraMaster F2-212 TerraMaster — — 172
TerraMaster F2-425 TerraMaster — — 172
QNAP TS-228 QNAP — — 169
TerraMaster D2-310 TerraMaster — — 164
TerraMaster D2-320 TerraMaster — — 164
TerraMaster D2 Thunderbolt 3 TerraMaster — — 163
Synology DS223 Synology Realtek RTD1619B DDR4 2 GB 131
QNAP HS-251+ QNAP — — 128
QNAP TS-228A QNAP Realtek RTD1295 4-core 1.4GHz processor 1 GB DDR4, not expandable 122
QNAP HS-251 QNAP — — 106
Synology DS224+ Synology Intel Celeron J4125 DDR4 2 GB 103
Synology DS223j Synology Realtek RTD1619B DDR4 1 GB 98
QNAP TS-209 II QNAP — — 98
QNAP TS-209 Pro QNAP — — 98
QNAP TS-209 Pro II QNAP — — 98
Synology DS207 Synology — — 92
Synology DS207+ Synology — — 92
QNAP TS-262A QNAP Intel Celeron N5095 4-core/4-thread processor, burst up to 2.9 GHz 4 GB SODIMM DDR4 79
UGREEN DXP2800 UGREEN — — 54
QNAP TS-239H QNAP — — 52
UGREEN DH2300 UGREEN — — 45
Synology DS225+ Synology Intel Celeron J4125 DDR4 2 GB 41
UGREEN DXP2800 GT UGREEN — — 36
TerraMaster F2-223 TerraMaster — — 35
QNAP HS-210 QNAP — — 7
Ubiquiti UNAS 2 UniFi — — spec-based
Ubiquiti UDM Pro Max UniFi Quad-core ARM Cortex-A57 @ 2.0 GHz 8 GB spec-based
Zspace Q2C Zspace — — requirements
Zspace Z2 Pro Zspace — — requirements
Zspace Z2 Ultra Zspace — 1× SO-DIMM DDR4, up to 16 GB requirements
TieNiu Zero 1 TieNiu Rockchip RK3568 4-core 2.0 GHz 4 GB DDR4 spec-based

Drives the most 2-bay machines share

Cross-checked against every 2-bay model's official list on this site — the safest part numbers when you're not sure which box you'll end up with:

DriveBrandSeriesListed on
DT01ACA300 Toshiba DT01ACA*** 58 of 105 models price 
WD20PURX Western Digital Purple 55 of 105 models price 
WD30PURX Western Digital Purple 55 of 105 models price 
MN06ACA10T Toshiba MN06ACA*** 52 of 105 models price 
HDWG11AXZSTA Toshiba N300 52 of 105 models price 
H3IKNAS30003272SA (0S03662) Western Digital Deskstar NAS 52 of 105 models price 
H3IKNAS30003272SN (0S03660) Western Digital Deskstar NAS 52 of 105 models price 
H3IKNAS40003272SA (0S03666) Western Digital Deskstar NAS 52 of 105 models price 
H3IKNAS40003272SE (0S03665) Western Digital Deskstar NAS 52 of 105 models price 
H3IKNAS40003272SN (0S03664) Western Digital Deskstar NAS 52 of 105 models price 
H3IKNAS30003272SE (0S03661) Western Digital Deskstar NAS 52 of 105 models price 
H3IKNAS30003272SJ (0S03663) Western Digital Deskstar NAS 52 of 105 models price 

Other bay counts

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