Drive comparison
HDWG51CXZSTB vs WD120EFBX
Toshiba N300 Pro 12TB and Western Digital WD Red Plus 12TB, compared using published manufacturer specifications.
Toshiba
N300 Pro 12TB
HDWG51CXZSTB
SATA 6 Gb/s · 3.5-inch
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Full specifications & all listings →Western Digital
WD Red Plus 12TB
WD120EFBX
SATA 6 Gb/s · 3.5-inch
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What differs between these models?
- NAS bays: HDWG51CXZSTB lists 24; WD120EFBX lists Up to 8.
- Cache (MB): HDWG51CXZSTB lists 512; WD120EFBX lists 256.
- Workload rating (TB/year): HDWG51CXZSTB lists 300; WD120EFBX lists 180.
- Manufacturer limited warranty: HDWG51CXZSTB lists 5 years (eligible new drives); WD120EFBX lists 3 years (eligible new drives).
A larger cache, higher RPM or higher advertised sequential speed alone does not establish which drive is better for your workload.
Specifications side by side
| Specification | HDWG51CXZSTB | WD120EFBX |
|---|---|---|
| Manufacturer | Toshiba | Western Digital |
| Product family | N300 Pro | WD Red Plus |
| Model number | HDWG51CXZSTB | WD120EFBX |
| Capacity (TB) | 12 | 12 |
| RPM | 7200 | 7200 |
| NAS bays | 24 | Up to 8 |
| Interface | SATA 6 Gb/s | SATA 6 Gb/s |
| Recording | CMR | CMR |
| Cache (MB) | 512 | 256 |
| Form factor | 3.5-inch | 3.5-inch |
| Sector format | 512e | Not recorded |
| Idle power (W) | 3.5 | Not recorded |
| Package / region | US retail; manufacturer-documented bulk package alias | Not recorded |
| Workload rating (TB/year) | 300 | 180 |
| Average operating power (W) | 6.85 | Not recorded |
| Rotational vibration sensors | Yes | Not recorded |
| Manufacturer limited warranty | 5 years (eligible new drives) | 3 years (eligible new drives) |
| Sustained transfer (up to MB/s) | 281 | Not recorded |
Compatibility and buying checks
- Check sector-format support in the controller and operating system, particularly for native 4K (4Kn) variants.
- Compare new and renewed offers separately. The manufacturer specification does not guarantee the warranty or return policy of a marketplace seller.
Manufacturer sources
HDWG51CXZSTB
Toshiba N300 Pro US datasheet TAEC-2839-R2.0, July 2026 ↗ · pages 5, 7
Reviewed 2026-09-08. Published specifications; no independent benchmark or failure-rate claim.
WD120EFBX
WD Red Plus datasheet, September 2025 ↗ · pages 2
Reviewed 2026-09-07. Published specifications; no independent benchmark or failure-rate claim.