Western Digital · Desktop drive · WD30EZZX
WD Blue 3TB
A desktop drive. WD sells it for PCs and gives it no NAS rating.
- Capacity
- 3 TB
- Recording
- CMR
- Speed
- 5,400 rpm
- Warranty
- 2 years
- Failure rate
- No failure data
Good for
- A PC, or a backup copy you plug in now and then
Not for
- A NAS (WD gives it no NAS rating)
Updated 27 Oct 2026 · Method 2.0
Who the WD Blue 3 TB is for
As a second drive in a PC, or a backup you plug in once a week, it does what you need.
Watch out for
It isn't a NAS drive, and WD gives it no NAS bay rating. Building an array? Get a NAS or data-centre line, which comes with the rating.
There's no Backblaze data worth quoting here.
Specifications
Each value links to the Western Digital page or datasheet it came from.
| Drive type | Desktop | source for Drive type (documents.westerndigital.com, opens in new tab) |
|---|---|---|
| Capacity | 3 TB | source for Capacity (westerndigital.com, opens in new tab) |
| Spindle speed | 5,400 rpm | source for Spindle speed (westerndigital.com, opens in new tab) |
| Recording technology | CMR | source for Recording technology (westerndigital.com, opens in new tab) |
| Cache | 128 MB | source for Cache (westerndigital.com, opens in new tab) |
| Interface | SATA 6Gb/s | source for Interface (documents.westerndigital.com, opens in new tab) |
| Form factor | 3.5in | source for Form factor (westerndigital.com, opens in new tab) |
| Max sustained transfer | 180 MB/s | source for Max sustained transfer (westerndigital.com, opens in new tab) |
| Workload rating | Not published | |
| Warranty | 2 years | source for Warranty (westerndigital.com, opens in new tab) |
WD Blue 3 TBWD30EZZX