Compatible hard drives for QNAP HS-251
104 drives are on QNAP's official compatibility list for the HS-251, up to 14TB listed. Read from qnap.com, list refreshed 2026-11-03.
2-bay Legacy model
104
Listed drives
85
NAS line
0
Enterprise line
19
SSD & surveillance
This vendor publishes its compatibility list as an advisory tested matrix — drives not on it are not firmware-blocked. Treat the list as a quality signal; off-list drives work but fall outside the tested pairing.
Capacity range on the official list
Where to start on the HS-251
For a home or small-office workload, the NAS lines below balance sustained writes and RAID-rebuild tolerance. Enterprise speed is only worth paying for in full-bay builds:
- Toshiba N300 — listed in 14TB price
- Toshiba N300 — listed in 14TB price
- Toshiba N300 — listed in 14TB price
- Toshiba N300 — listed in 14TB price
Full HS-251 compatibility list
Grouped by part number; Max shows the largest capacity QNAP lists. Filter by brand, line or capacity:
| Drive | Brand | Series | Line | Type | Max listed |
|---|---|---|---|---|---|
| HDWG21EAZSTA | Toshiba | N300 | NAS | SATA 6Gb/s (SATA III) | 14 TB |
| HDWG21EEZSTA | Toshiba | N300 | NAS | SATA 6Gb/s (SATA III) | 14 TB |
| HDWG21EUZSVA(Bulk) | Toshiba | N300 | NAS | SATA 6Gb/s (SATA III) | 14 TB |
| HDWG21EXZSTA | Toshiba | N300 | NAS | SATA 6Gb/s (SATA III) | 14 TB |
| HDWG21EYZSTA | Toshiba | N300 | NAS | SATA 6Gb/s (SATA III) | 14 TB |
| MN07ACA14T | Toshiba | MN | NAS | SATA 6Gb/s (SATA III) | 14 TB |
| ST14000VN0008 | Seagate | IronWolf | NAS | SATA 6Gb/s (SATA III) | 14 TB |
| ST12000NE0007 | Seagate | IronWolf Pro | NAS | SATA 6Gb/s (SATA III) | 12 TB |
| ST12000VN0007 | Seagate | IronWolf | NAS | SATA 6Gb/s (SATA III) | 12 TB |
| WD120EFAX-68UNTN0 | Western Digital | Red Plus | NAS | SATA 6Gb/s (SATA III) | 12 TB |
| WD120EFBX-68B0EN0 | Western Digital | Red Plus | NAS | SATA 6Gb/s (SATA III) | 12 TB |
| HDWG11AAZSTA | Toshiba | N300 | NAS | SATA 6Gb/s (SATA III) | 10 TB |
| HDWG11AEZSTA | Toshiba | N300 | NAS | SATA 6Gb/s (SATA III) | 10 TB |
| HDWG11AUZSVA | Toshiba | N300 | NAS | SATA 6Gb/s (SATA III) | 10 TB |
| HDWG11AXZSTA | Toshiba | N300 | NAS | SATA 6Gb/s (SATA III) | 10 TB |
| HDWG11AYZSTA | Toshiba | N300 | NAS | SATA 6Gb/s (SATA III) | 10 TB |
| MN06ACA10T | Toshiba | MN06 | NAS | SATA 6Gb/s (SATA III) | 10 TB |
| ST10000NE0004 | Seagate | IronWolf Pro | NAS | SATA 6Gb/s (SATA III) | 10 TB |
| ST10000VN0004 | Seagate | IronWolf | NAS | SATA 6Gb/s (SATA III) | 10 TB |
| ST10000VN0014 | Seagate | NAS | NAS | SATA 6Gb/s (SATA III) | 10 TB |
| WD100EFAX | Western Digital | NAS | NAS | SATA 6Gb/s (SATA III) | 10 TB |
| HDN728080ALE604(H3IKNAS800012872SWW) | HGST | NAS | NAS | SATA 6Gb/s (SATA III) | 8 TB |
| HDWG180AZSTA | Toshiba | N300 | NAS | SATA 6Gb/s (SATA III) | 8 TB |
| HDWG180EZSTA | Toshiba | N300 | NAS | SATA 6Gb/s (SATA III) | 8 TB |
| HDWG180UZSVA(Bulk) | Toshiba | N300 | NAS | SATA 6Gb/s (SATA III) | 8 TB |
| HDWG180XZSTA | Toshiba | N300 | NAS | SATA 6Gb/s (SATA III) | 8 TB |
| HDWG180YZSTA | Toshiba | N300 | NAS | SATA 6Gb/s (SATA III) | 8 TB |
| MN05ACA800 | Toshiba | MN | NAS | SATA 6Gb/s (SATA III) | 8 TB |
| MN06ACA800 | Toshiba | MN06 | NAS | SATA 6Gb/s (SATA III) | 8 TB |
| ST8000NE0004 | Seagate | IronWolf Pro | NAS | SATA 6Gb/s (SATA III) | 8 TB |
| ST8000VN0002 | Seagate | NAS | NAS | SATA 6Gb/s (SATA III) | 8 TB |
| ST8000VN0004 | Seagate | IronWolf | NAS | SATA 6Gb/s (SATA III) | 8 TB |
| ST8000VN0012 | Seagate | NAS | NAS | SATA 6Gb/s (SATA III) | 8 TB |
| ST8000VN0022 | Seagate | NAS | NAS | SATA 6Gb/s (SATA III) | 8 TB |
| WD80EFAX-68KNBN0 | Western Digital | Red Plus | NAS | SATA 6Gb/s (SATA III) | 8 TB |
| WD80EFBX-68AZZN0 | Western Digital | Red Plus | NAS | SATA 6Gb/s (SATA III) | 8 TB |
| ST7000VN0002 | Seagate | IronWolf | NAS | SATA 6Gb/s (SATA III) | 7 TB |
| HDN724060ALE640 | HGST | NAS | NAS | SATA 6Gb/s (SATA III) | 6 TB |
| HDWG160AZSTA | Toshiba | N300 | NAS | SATA 6Gb/s (SATA III) | 6 TB |
| HDWG160EZSTA | Toshiba | N300 | NAS | SATA 6Gb/s (SATA III) | 6 TB |
| HDWG160UZSVA(Bulk) | Toshiba | N300 | NAS | SATA 6Gb/s (SATA III) | 6 TB |
| HDWG160XZSTA | Toshiba | N300 | NAS | SATA 6Gb/s (SATA III) | 6 TB |
| HDWG160YZSTA | Toshiba | N300 | NAS | SATA 6Gb/s (SATA III) | 6 TB |
| MN06ACA600 | Toshiba | MN06 | NAS | SATA 6Gb/s (SATA III) | 6 TB |
| ST6000NE0023 | Seagate | IronWolf Pro | NAS | SATA 6Gb/s (SATA III) | 6 TB |
| ST6000VN0003 | Seagate | NAS | NAS | SATA 6Gb/s (SATA III) | 6 TB |
| ST6000VN0021 | Seagate | NAS | NAS | SATA 6Gb/s (SATA III) | 6 TB |
| ST6000VN0031 | Seagate | NAS | NAS | SATA 6Gb/s (SATA III) | 6 TB |
| ST6000VN0031 (Rescue Recovery) | Seagate | NAS | NAS | SATA 6Gb/s (SATA III) | 6 TB |
| ST6000VN0033 | Seagate | Surveillance | Surveillance | SATA 6Gb/s (SATA III) | 6 TB |
| ST6000VN0041 | Seagate | IronWolf | NAS | SATA 6Gb/s (SATA III) | 6 TB |
| WD60EFAX | Western Digital | Red | NAS | SATA 6Gb/s (SATA III) | 6 TB |
| WD60EFRX (Red NASware 3.0) | Western Digital | NAS | NAS | SATA 6Gb/s (SATA III) | 6 TB |
| WD60EFRX_MYMN1 (NASware 3.0) | Western Digital | NAS | NAS | SATA 6Gb/s (SATA III) | 6 TB |
| WD60PURX | Western Digital | Surveillance | Surveillance | SATA 6Gb/s (SATA III) | 6 TB |
| HDN724050ALE640 | HGST | NAS | NAS | SATA 6Gb/s (SATA III) | 5 TB |
| WD50EFRX (Red NASware 3.0) | Western Digital | NAS | NAS | SATA 6Gb/s (SATA III) | 5 TB |
| WD50PURX | Western Digital | Surveillance | Surveillance | SATA 6Gb/s (SATA III) | 5 TB |
| HDN724040ALE640 | HGST | NAS | NAS | SATA 6Gb/s (SATA III) | 4 TB |
| ST4000NE0025 | Seagate | IronWolf Pro | NAS | SATA 6Gb/s (SATA III) | 4 TB |
| ST4000VN000 | Seagate | NAS | NAS | SATA 6Gb/s (SATA III) | 4 TB |
| ST4000VN003 | Seagate | NAS | NAS | SATA 6Gb/s (SATA III) | 4 TB |
| ST4000VN003 (NAS HDD; Rescue Recovery) | Seagate | NAS | NAS | SATA 6Gb/s (SATA III) | 4 TB |
| ST4000VN008 | Seagate | IronWolf | NAS | SATA 6Gb/s (SATA III) | 4 TB |
| ST4000VX000 | Seagate | Surveillance | Surveillance | SATA 6Gb/s (SATA III) | 4 TB |
| ST4000VX002 | Seagate | Surveillance | Surveillance | SATA 6Gb/s (SATA III) | 4 TB |
| ST4000VX007 | Seagate | Surveillance SKYHAWK | Surveillance | SATA 6Gb/s (SATA III) | 4 TB |
| WD40EFAX | Western Digital | Red | NAS | SATA 6Gb/s (SATA III) | 4 TB |
| WD40EFRX (Red NASware 2.0) | Western Digital | NAS | NAS | SATA 6Gb/s (SATA III) | 4 TB |
| WD40EFRX (Red NASware 3.0) | Western Digital | NAS | NAS | SATA 6Gb/s (SATA III) | 4 TB |
| WD40PURX | Western Digital | Surveillance | Surveillance | SATA 6Gb/s (SATA III) | 4 TB |
| DT01ABA300V | Toshiba | Surveillance DT01-V | Surveillance | SATA 6Gb/s (SATA III) | 3 TB |
| HDN724030ALE640 | HGST | NAS | NAS | SATA 6Gb/s (SATA III) | 3 TB |
| ST3000VN000 | Seagate | NAS | NAS | SATA 6Gb/s (SATA III) | 3 TB |
| ST3000VN002 | Seagate | NAS | NAS | SATA 6Gb/s (SATA III) | 3 TB |
| ST3000VN007 | Seagate | IronWolf | NAS | SATA 6Gb/s (SATA III) | 3 TB |
| ST3000VX000 | Seagate | Surveillance | Surveillance | SATA 6Gb/s (SATA III) | 3 TB |
| ST3000VX002 | Seagate | Surveillance | Surveillance | SATA 6Gb/s (SATA III) | 3 TB |
| WD30EFAX | Western Digital | Red | NAS | SATA 6Gb/s (SATA III) | 3 TB |
| WD30EFRX (Red NASware 3.0) | Western Digital | NAS | NAS | SATA 6Gb/s (SATA III) | 3 TB |
| WD30EFRX-68EUZN0 (Red NASware 2.0) | Western Digital | NAS | NAS | SATA 6Gb/s (SATA III) | 3 TB |
| WD30PURX | Western Digital | Surveillance | Surveillance | SATA 6Gb/s (SATA III) | 3 TB |
| DT01ABA200V | Toshiba | Surveillance DT01-V | Surveillance | SATA 6Gb/s (SATA III) | 2 TB |
| ST2000NE0025 | Seagate | IronWolf Pro | NAS | SATA 6Gb/s (SATA III) | 2 TB |
| ST2000VN000 | Seagate | NAS | NAS | SATA 6Gb/s (SATA III) | 2 TB |
| ST2000VN001 | Seagate | NAS | NAS | SATA 6Gb/s (SATA III) | 2 TB |
| ST2000VN001 (NAS HDD; Rescue Recovery) | Seagate | NAS | NAS | SATA 6Gb/s (SATA III) | 2 TB |
| ST2000VN004 | Seagate | IronWolf | NAS | SATA 6Gb/s (SATA III) | 2 TB |
| ST2000VX000 | Seagate | Surveillance | Surveillance | SATA 6Gb/s (SATA III) | 2 TB |
| WD20EFAX | Western Digital | Red | NAS | SATA 6Gb/s (SATA III) | 2 TB |
| WD20EFRX (Red NASware 3.0) | Western Digital | NAS | NAS | SATA 6Gb/s (SATA III) | 2 TB |
| WD20EFRX-68EUZN0 (Red NASware 2.0) | Western Digital | NAS | NAS | SATA 6Gb/s (SATA III) | 2 TB |
| WD20PURX | Western Digital | Surveillance | Surveillance | SATA 6Gb/s (SATA III) | 2 TB |
| DT01ABA100V | Toshiba | Surveillance DT01-V | Surveillance | SATA 6Gb/s (SATA III) | 1 TB |
| ST1000VN000 | Seagate | NAS | NAS | SATA 6Gb/s (SATA III) | 1 TB |
| ST1000VN001 | Seagate | NAS | NAS | SATA 6Gb/s (SATA III) | 1 TB |
| ST1000VN002 | Seagate | IronWolf | NAS | SATA 6Gb/s (SATA III) | 1 TB |
| ST1000VX000 | Seagate | Surveillance | Surveillance | SATA 6Gb/s (SATA III) | 1 TB |
| WD10EFRX (Red NASware 3.0) | Western Digital | Red Plus | NAS | SATA 6Gb/s (SATA III) | 1 TB |
| WD10EFRX-68PJCN0 (Red NASware 1.0) | Western Digital | NAS | NAS | SATA 6Gb/s (SATA III) | 1 TB |
| WD10ERFX- 68PJCN0 (Red) | Western Digital | NAS | NAS | SATA 6Gb/s (SATA III) | 1 TB |
| WD10PURX | Western Digital | Surveillance | Surveillance | SATA 6Gb/s (SATA III) | 1 TB |
| DT01ABA050V | Toshiba | Surveillance DT01-V | Surveillance | SATA 6Gb/s (SATA III) | 500 GB |
| WD05PURX | Western Digital | Surveillance | Surveillance | SATA 6Gb/s (SATA III) | 500 GB |
Security: QNAP security: DeadBolt history & lockdown — eCh0raix → Qlocker → DeadBolt — what changed.