Compatible hard drives for QNAP TS-251A
196 drives are on QNAP's official compatibility list for the TS-251A, up to 16TB listed. Read from qnap.com, list refreshed 2026-11-03.
2-bay Legacy model
196
Listed drives
117
NAS line
10
Enterprise line
69
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 TS-251A
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:
- Seagate IronWolf — listed in 16TB price
- Toshiba N300 — listed in 14TB price
- Toshiba N300 — listed in 14TB price
- Toshiba N300 — listed in 14TB price
Full TS-251A 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 |
|---|---|---|---|---|---|
| ST16000VE000 | Seagate | Surveillance | Surveillance | SATA 6Gb/s (SATA III) | 16 TB |
| ST16000VN001 | Seagate | IronWolf | NAS | SATA 6Gb/s (SATA III) | 16 TB |
| 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 |
| ST14000VE0008 | Seagate | Surveillance | Surveillance | SATA 6Gb/s (SATA III) | 14 TB |
| ST14000VN0008 | Seagate | IronWolf | NAS | SATA 6Gb/s (SATA III) | 14 TB |
| ST14000VX0008 | Seagate | Surveillance | Surveillance | SATA 6Gb/s (SATA III) | 14 TB |
| WD140EFFX-68VBXN0 | Western Digital | Red Plus | NAS | SATA 6Gb/s (SATA III) | 14 TB |
| WD140EFGX-68B0GN0 | Western Digital | Red Plus | NAS | SATA 6Gb/s (SATA III) | 14 TB |
| WD141KFGX | Western Digital | Red Pro | NAS | SATA 6Gb/s (SATA III) | 14 TB |
| HDWG21CAZSTA | Toshiba | N300 | NAS | SATA 6Gb/s (SATA III) | 12 TB |
| HDWG21CEZSTA | Toshiba | N300 | NAS | SATA 6Gb/s (SATA III) | 12 TB |
| HDWG21CUZSVA(Bulk) | Toshiba | N300 | NAS | SATA 6Gb/s (SATA III) | 12 TB |
| HDWG21CXZSTA | Toshiba | N300 | NAS | SATA 6Gb/s (SATA III) | 12 TB |
| HDWG21CYZSTA | Toshiba | N300 | NAS | SATA 6Gb/s (SATA III) | 12 TB |
| MN07ACA12T | Toshiba | MN | NAS | SATA 6Gb/s (SATA III) | 12 TB |
| ST12000NE0007 | Seagate | IronWolf Pro | NAS | SATA 6Gb/s (SATA III) | 12 TB |
| ST12000VE0008 | Seagate | Surveillance | Surveillance | SATA 6Gb/s (SATA III) | 12 TB |
| ST12000VN0007 | Seagate | IronWolf | NAS | SATA 6Gb/s (SATA III) | 12 TB |
| ST12000VN0008 | 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 |
| WD121EJRX | Western Digital | Surveillance | Surveillance | SATA 6Gb/s (SATA III) | 12 TB |
| WD121KFBX-68EF5N0 | Western Digital | Red Pro | NAS | SATA 6Gb/s (SATA III) | 12 TB |
| WD121PURX | Western Digital | Surveillance | Surveillance | SATA 6Gb/s (SATA III) | 12 TB |
| WD121PURZ | Western Digital | Surveillance | Surveillance | SATA 6Gb/s (SATA III) | 12 TB |
| WD12EVRX | Western Digital | Surveillance | Surveillance | 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 |
| HUH721010ALE600 | HGST | Enterprise | Enterprise | SATA 6Gb/s (SATA III) | 10 TB |
| MD06ACA10TV | Toshiba | Surveillance MD06-V | Surveillance | 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 |
| ST10000VE0004 | Seagate | Surveillance SKYHAWK AI | Surveillance | SATA 6Gb/s (SATA III) | 10 TB |
| ST10000VE0008 | Seagate | Surveillance | Surveillance | SATA 6Gb/s (SATA III) | 10 TB |
| ST10000VN0004 | Seagate | IronWolf | NAS | SATA 6Gb/s (SATA III) | 10 TB |
| ST10000VN0008 | Seagate | IronWolf | NAS | SATA 6Gb/s (SATA III) | 10 TB |
| ST10000VN0014 | Seagate | NAS | NAS | SATA 6Gb/s (SATA III) | 10 TB |
| ST10000VX0004 | Seagate | Surveillance SKYHAWK | Surveillance | SATA 6Gb/s (SATA III) | 10 TB |
| ST10000VX0014 | Seagate | Surveillance | Surveillance | SATA 6Gb/s (SATA III) | 10 TB |
| WD100EFAX | Western Digital | NAS | NAS | SATA 6Gb/s (SATA III) | 10 TB |
| WD100PURZ | Western Digital | Surveillance | Surveillance | SATA 6Gb/s (SATA III) | 10 TB |
| WD101PURZ | Western Digital | Surveillance | Surveillance | SATA 6Gb/s (SATA III) | 10 TB |
| WD102KFBX | Western Digital | Red Pro | 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 |
| HDWN180AZSTA (MN05ACA800) | Toshiba | N300 | NAS | SATA 6Gb/s (SATA III) | 8 TB |
| HDWN180EZSTA (MN05ACA800) | Toshiba | N300 | NAS | SATA 6Gb/s (SATA III) | 8 TB |
| HDWN180UZSVA (MN05ACA800) | Toshiba | N300 | NAS | SATA 6Gb/s (SATA III) | 8 TB |
| HDWN180XZSTA (MN05ACA800) | Toshiba | N300 | NAS | SATA 6Gb/s (SATA III) | 8 TB |
| HDWN180YZSTA (MN05ACA800) | Toshiba | N300 | NAS | SATA 6Gb/s (SATA III) | 8 TB |
| HUH721008ALE600 | HGST | Enterprise | Enterprise | SATA 6Gb/s (SATA III) | 8 TB |
| MD06ACA800V | Toshiba | Surveillance MD06-V | Surveillance | 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 |
| ST8000NM0055 | Seagate | Exos 7E8 | Enterprise | SATA 6Gb/s (SATA III) | 8 TB |
| ST8000VE000 | Seagate | Surveillance | Surveillance | SATA 6Gb/s (SATA III) | 8 TB |
| ST8000VE0004 | Seagate | Surveillance SKYHAWK AI | Surveillance | 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 |
| ST8000VX0002 | Seagate | Surveillance | Surveillance | SATA 6Gb/s (SATA III) | 8 TB |
| ST8000VX0012 | Seagate | Surveillance | Surveillance | SATA 6Gb/s (SATA III) | 8 TB |
| ST8000VX004 | Seagate | Surveillance SKYHAWK | Surveillance | SATA 6Gb/s (SATA III) | 8 TB |
| WD8001FFWX | Western Digital | Enterprise | Enterprise | SATA 6Gb/s (SATA III) | 8 TB |
| WD8003FFBX | Western Digital | Red Pro | 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 |
| WD80EFZX | Western Digital | NAS | NAS | SATA 6Gb/s (SATA III) | 8 TB |
| WD80PURZ | Western Digital | Surveillance | Surveillance | SATA 6Gb/s (SATA III) | 8 TB |
| WD81PURZ | Western Digital | Surveillance | Surveillance | 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 |
| HDWN160AZSTA (MN05ACA600) | Toshiba | N300 | NAS | SATA 6Gb/s (SATA III) | 6 TB |
| HDWN160EZSTA (MN05ACA600) | Toshiba | N300 | NAS | SATA 6Gb/s (SATA III) | 6 TB |
| HDWN160UZSVA (MN05ACA600) | Toshiba | N300 | NAS | SATA 6Gb/s (SATA III) | 6 TB |
| HDWN160XZSTA (MN05ACA600) | Toshiba | N300 | NAS | SATA 6Gb/s (SATA III) | 6 TB |
| HDWN160YZSTA (MN05ACA600) | Toshiba | N300 | NAS | SATA 6Gb/s (SATA III) | 6 TB |
| MD06ACA600V | Toshiba | Surveillance MD06-V | Surveillance | SATA 6Gb/s (SATA III) | 6 TB |
| MN05ACA600 | Toshiba | MN | 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 |
| ST6000VN001 | Seagate | IronWolf | 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 |
| WD6002FFWX | Western Digital | Enterprise | Enterprise | SATA 6Gb/s (SATA III) | 6 TB |
| WD6003FFBX | Western Digital | Red Pro | 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 |
| WD60PURZ | 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 |
| H3IKNAS40003272SN | HGST | NAS | NAS | SATA 6Gb/s (SATA III) | 4 TB |
| HDN724040ALE640 | HGST | NAS | NAS | SATA 6Gb/s (SATA III) | 4 TB |
| HDWQ140AZSTA (MN04ACA400) | Toshiba | N300 | NAS | SATA 6Gb/s (SATA III) | 4 TB |
| HDWQ140EZSTA (MN04ACA400) | Toshiba | N300 | NAS | SATA 6Gb/s (SATA III) | 4 TB |
| HDWQ140UZSVA (MN04ACA400) | Toshiba | N300 | NAS | SATA 6Gb/s (SATA III) | 4 TB |
| HDWQ140XZSTA (MN04ACA400) | Toshiba | N300 | NAS | SATA 6Gb/s (SATA III) | 4 TB |
| HDWQ140YZSTA (MN04ACA400) | Toshiba | N300 | NAS | SATA 6Gb/s (SATA III) | 4 TB |
| HUS726040ALA614 | HGST | Enterprise | Enterprise | SATA 6Gb/s (SATA III) | 4 TB |
| MN04ACA400 | Toshiba | MN | 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 |
| 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 |
| WD4002FFWX | Western Digital | Enterprise | Enterprise | SATA 6Gb/s (SATA III) | 4 TB |
| WD4003FFBX | Western Digital | Red Pro | NAS | SATA 6Gb/s (SATA III) | 4 TB |
| WD40EFAX | Western Digital | Red | 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 |
| WD40PURZ | Western Digital | Surveillance | Surveillance | SATA 6Gb/s (SATA III) | 4 TB |
| DT01ABA300V | Toshiba | Surveillance DT01-V | Surveillance | SATA 6Gb/s (SATA III) | 3 TB |
| DT01ACA300 | Toshiba | Consumer DT01 | Other | SATA 6Gb/s (SATA III) | 3 TB |
| H3IKNAS30003272SN | HGST | NAS | NAS | SATA 6Gb/s (SATA III) | 3 TB |
| HDN724030ALE640 | HGST | NAS | NAS | SATA 6Gb/s (SATA III) | 3 TB |
| HDWD130AZSTA | Toshiba | Consumer | Other | SATA 6Gb/s (SATA III) | 3 TB |
| HDWD130EZSTA | Toshiba | Consumer | Other | SATA 6Gb/s (SATA III) | 3 TB |
| HDWD130UZSVA | Toshiba | Consumer | Other | SATA 6Gb/s (SATA III) | 3 TB |
| HDWD130XZSTA | Toshiba | Consumer | Other | 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 |
| WD30PURX | Western Digital | Surveillance | Surveillance | SATA 6Gb/s (SATA III) | 3 TB |
| WD30PURZ | Western Digital | Surveillance | Surveillance | SATA 6Gb/s (SATA III) | 3 TB |
| DT01ABA200V | Toshiba | Surveillance DT01-V | Surveillance | SATA 6Gb/s (SATA III) | 2 TB |
| DT01ACA200 | Toshiba | Consumer DT01 | Other | SATA 6Gb/s (SATA III) | 2 TB |
| HDWD120AZSTA | Toshiba | Consumer | Other | SATA 6Gb/s (SATA III) | 2 TB |
| HDWD120EZSTA | Toshiba | Consumer | Other | SATA 6Gb/s (SATA III) | 2 TB |
| HDWD120UZSVA | Toshiba | Consumer | Other | SATA 6Gb/s (SATA III) | 2 TB |
| HDWD120XZSTA | Toshiba | Consumer | Other | SATA 6Gb/s (SATA III) | 2 TB |
| HUS726020ALA614 | HGST | Enterprise | Enterprise | SATA 6Gb/s (SATA III) | 2 TB |
| ST2000NE0025 | Seagate | IronWolf Pro | NAS | SATA 6Gb/s (SATA III) | 2 TB |
| ST2000NM0008 | Seagate | Enterprise | Enterprise | 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 |
| ST2000VN004 | Seagate | IronWolf | NAS | SATA 6Gb/s (SATA III) | 2 TB |
| ST2000VX000 | Seagate | Surveillance | Surveillance | SATA 6Gb/s (SATA III) | 2 TB |
| WD2002FFSX | Western Digital | Red Pro | NAS | 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 |
| WD20PURX | Western Digital | Surveillance | Surveillance | SATA 6Gb/s (SATA III) | 2 TB |
| WD20PURZ | Western Digital | Surveillance | Surveillance | SATA 6Gb/s (SATA III) | 2 TB |
| DT01ABA100V | Toshiba | Surveillance DT01-V | Surveillance | SATA 6Gb/s (SATA III) | 1 TB |
| DT01ACA100 | Toshiba | Consumer DT01 | Other | SATA 6Gb/s (SATA III) | 1 TB |
| HDWD110AZSTA | Toshiba | Consumer | Other | SATA 6Gb/s (SATA III) | 1 TB |
| HDWD110EZSTA | Toshiba | Consumer | Other | SATA 6Gb/s (SATA III) | 1 TB |
| HDWD110UZSVA | Toshiba | Consumer | Other | SATA 6Gb/s (SATA III) | 1 TB |
| HDWD110XZSTA | Toshiba | Consumer | Other | SATA 6Gb/s (SATA III) | 1 TB |
| ST1000NM0008 | Seagate | Enterprise | Enterprise | 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 |
| WD10PURX | Western Digital | Surveillance | Surveillance | SATA 6Gb/s (SATA III) | 1 TB |
| WD10PURZ | Western Digital | Surveillance | Surveillance | SATA 6Gb/s (SATA III) | 1 TB |
| DT01ABA050V | Toshiba | Surveillance DT01-V | Surveillance | SATA 6Gb/s (SATA III) | 500 GB |
| DT01ACA050 | Toshiba | Consumer DT01 | Other | SATA 6Gb/s (SATA III) | 500 GB |
| HDWD105AZSTA | Toshiba | Consumer | Other | SATA 6Gb/s (SATA III) | 500 GB |
| HDWD105EZSTA | Toshiba | Consumer | Other | SATA 6Gb/s (SATA III) | 500 GB |
| HDWD105UZSVA | Toshiba | Consumer | Other | SATA 6Gb/s (SATA III) | 500 GB |
| HDWD105XZSTA | Toshiba | Consumer | Other | SATA 6Gb/s (SATA III) | 500 GB |
| WD05PURX | Western Digital | Surveillance | Surveillance | SATA 6Gb/s (SATA III) | 500 GB |
| WD05PURZ | Western Digital | Surveillance | Surveillance | SATA 6Gb/s (SATA III) | 500 GB |
Going big on the TS-251A?
At the top of the capacity range only enterprise lines are listed. They are built for sustained 7200RPM writes and 24/7 RAID duty — the right choice for a full-bay build:
Security: QNAP security: DeadBolt history & lockdown — eCh0raix → Qlocker → DeadBolt — what changed.