Find the Cheapest 22TB NAS Drive Today
22TB NAS-rated CMR drives by price per TB
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The best 22TB NAS drives are NAS-rated CMR models. 22TB is a top-tier capacity for data hoarders, large Plex and media servers, surveillance and small-business archives that need the most storage per bay. At this capacity, rebuild time matters, so favour CMR drives and consider RAID 6 or SHR-2 for two-drive protection. The live table ranks current 22TB drives by price per terabyte.
Who a 22TB NAS drive suits
22TB is a top-tier capacity for data hoarders, large Plex and media servers, surveillance and small-business archives that need the most storage per bay. These are helium-filled enterprise and Pro drives, the densest you can reasonably buy for a home or SOHO NAS.
22TB is overkill for a small Plex library but ideal for a large 4K collection or a household that never wants to run out. Fewer, larger drives also leave bays free to expand later.
Where 22TB sits on the value curve
22TB carries a clear capacity premium per terabyte over mid-size drives, but it gives the highest density per bay, so it wins when you have limited bays and a lot to store. Seagate Exos is typically the cheapest route to this capacity; the Pro NAS ranges cost a little more for lower noise and NAS tuning.
For the lowest price per terabyte at 22TB, Seagate Exos is usually the value pick, with WD Red Pro and IronWolf Pro costing a little more for lower noise and NAS tuning. The live table ranks them by current price per terabyte.
Usable capacity from 22TB drives
| Use case | Best choice | Why |
|---|---|---|
| 2x 22TB, RAID 1 / SHR | ~20TB usable | A mirror: survives one drive failure, half the raw capacity. |
| 4x 22TB, RAID 5 / SHR | ~60TB usable | Single parity: survives one failure, about 75% of raw. |
| 4x 22TB, RAID 6 / SHR-2 | ~40TB usable | Dual parity: survives two failures, the safer choice at high capacity. |
The 22TB buying note
At 22TB rebuild time and dual redundancy are the priority. A single-parity rebuild of a drive this large can run well over a day, so RAID 6 or SHR-2 (two-drive fault tolerance) is strongly advised over RAID 5. CMR is essential, and expect more noise and heat from these enterprise-class drives, which suit a cupboard or rack rather than a desk.
Available NAS-rated families at 22TB: 22TB comes from Seagate IronWolf Pro, WD Red Pro, Seagate Exos and Toshiba enterprise drives. There is no WD Red Plus or standard IronWolf at this size; everything here is a high-workload (300 to 550TB per year), 5-year-warranty class drive.
22TB NAS drives, by price per TB
| Product | Capacity | Price | $ / TB | Type | Prime | Buy |
|---|---|---|---|---|---|---|
| TOSHIBA N300 Internal Hard Drive 22 Tb 7200 RPM 512 Mb 3.5", W129161818 (Tb 7200 RPM 512 Mb 3.5 Serial Ata Iii) | 22 TB | $831.00 | $37.77 | NAS HDD · SATACMR | - | Buy on Amazon |
| Western Digital 22TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 512 MB Cache, 3.5" - WD221KFGXSold by Amazon | 22 TB | $1,123.01 | $51.05 | NAS HDD · SATACMR | Prime | Buy on Amazon |
| Western Digital WD Ultrastar HC570 WUH722222ALE6L4 22TB 7200RPM 3.5'' Desktop HDD 0F48155 | 22 TB | $1,272.05 | $57.82 | Enterprise HDD · SATACMREnterprise | - | Buy on Amazon |
| WD Ultrastar DC HC570 0F48155 22 TB Hard Drive - 3.5" Internal - SATA (SATA/600) - Conventional Magnetic Recording (CMR) Method | 22 TB | $1,314.76 | $59.76 | Enterprise HDD · SATACMREnterprise | - | Buy on Amazon |
Renewed, refurbished and used listings
Shown for reference. These are not counted in the best price per TB above, and warranty terms differ from new drives.
Frequently asked questions
How many 22TB drives do I need for around 60TB usable?
Four 22TB drives in RAID 5 or Synology SHR give about 60TB usable after parity and overhead, with single-drive fault tolerance. Two 22TB drives in a mirror give about 20TB. For two-drive protection, four in RAID 6 or SHR-2 give about 40TB.
Is 22TB too much for a home NAS?
Not if you store a large 4K media library, run surveillance, or want maximum density per bay. 22TB gives the best capacity per bay; for light backup-only use, an 8TB to 12TB drive is cheaper per terabyte.
What is the cheapest 22TB NAS drive?
For the lowest price per terabyte at 22TB, Seagate Exos is usually the value pick, with WD Red Pro and IronWolf Pro costing a little more for lower noise and NAS tuning. The live table ranks them by current price per terabyte.
Does a 22TB drive need RAID 6 instead of RAID 5?
It is strongly advised. Rebuilding a failed 22TB drive can take more than a day, and RAID 5 has no protection during that window. RAID 6 or Synology SHR-2 keeps a second parity drive so the array survives a second failure mid-rebuild.