HMS5C4040BLE640
WD MegaScale DC 4000.B · 4TB
CMR
✓ RAID-safe (CMR)
EOL - no longer sold
End of life - no longer sold new.
Specifications
- Capacity
- 4 TB
- Technology
- CMR
- Class
- Enterprise
- RPM
- 5700
- Cache
- 64 MB
- Noise (idle / seek)
- -
- Fill
- Air
- Interface
- SATA
- Form factor
- 3.5"
- Data confidence
- High
Reliability
Annualized failure rate
0.47%
Sample size186 drives
Drive-days391,135
Source: Backblaze thru Q1 2026. All rankings →
Price history
No CA price history yet - we start tracking once this drive has a CA price.