Best 22TB NAS hard drives
We track 11 currently-sold 22TB NAS drives from WD, Seagate and Toshiba, ranked by real-world failure rate. The lowest measured annualized failure rate is the WD Ultrastar DC HC570 WUH722222ALE6L4 at 0.47% (Backblaze Drive Stats). Best value is the Seagate ST22000NM001E at about $36.20/TB.
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| Drive | Capacity | Tech | Class | Interface | AFR | C$/TB | Price | |
|---|---|---|---|---|---|---|---|---|
| 1 |
WUH722222ALE6L4 WD Ultrastar DC HC570
|
22 TB | CMR | Enterprise | SATA | 0.47% | - | - |
| 2 |
WD221KFGX WD Red Pro
|
22 TB | CMR | NAS-Pro | SATA | - | C$63.64 | C$1,400 |
| 3 |
WD221KRYZ WD Gold
|
22 TB | CMR | Enterprise | SATA | - | C$62.27 | C$1,370 |
| 4 |
WD221PURP WD Purple Pro
|
22 TB | CMR | Surveillance | SATA | - | - | - |
| 5 |
ST22000NT001 Seagate IronWolf Pro
|
22 TB | CMR | NAS-Pro | SATA | - | C$66.96 | C$1,473 |
| 6 |
ST22000NM001E Seagate Exos X22
|
22 TB | CMR | Enterprise | SATA | - | C$49.58 | C$1,091 |
| 7 |
MG10AFA22TE Toshiba MG10
|
22 TB | CMR | Enterprise | SATA | - | C$60.65 | C$1,334 |
| 8 |
ST22000NM000E Seagate Exos X22
|
22 TB | CMR | Enterprise | SAS | - | - | - |
| 9 |
WUH722222AL5201 WD Ultrastar DC HC570
|
22 TB | CMR | Enterprise | SAS | - | - | - |
| 10 |
WUH722422AL5201 WD Ultrastar DC HC580
|
22 TB | CMR | Enterprise | SAS | - | - | - |
| 11 |
MG10SFA22TE Toshiba MG10
|
22 TB | CMR | Enterprise | SAS | - | - | - |
Ranked by measured failure rate (Backblaze AFR). $/TB uses the cheapest live price where available.
Every drive here is a CMR (RAID-safe) 22TB model in current production. For a NAS or RAID array, pick the lowest failure rate you can afford; enterprise drives (Exos, Ultrastar, MG) trade some noise and power draw for the longest workload ratings. See how to choose a NAS drive for the full rundown.
Frequently asked questions
- What is the most reliable 22TB NAS drive?
- WD Ultrastar DC HC570 WUH722222ALE6L4 has the lowest Backblaze annualized failure rate at this capacity at the time of writing.
- Are 22TB NAS drives CMR or SMR?
- Every 22TB drive we recommend for NAS use is CMR (conventional recording), the RAID-safe choice. We exclude SMR drives from NAS picks.