Drive comparison
WD101FZBX vs WD102FZBX
Western Digital WD_BLACK 10TB and Western Digital WD_BLACK 10TB, compared using published manufacturer specifications.
Western Digital
WD_BLACK 10TB
WD101FZBX
SATA 6Gb/s · 3.5-inch
$472.00
Amazon US · New listing ↗ASIN B08P9NQ8RM · as of Sep 12, 2026 11:48 UTC
Full specifications & all listings →
Western Digital
WD_BLACK 10TB
WD102FZBX
SATA 6Gb/s · 3.5-inch
$459.96
Amazon US · New listing ↗ASIN B0DF99JTF1 · as of Sep 12, 2026 10:52 UTC
Full specifications & all listings →As an Amazon Associate I earn from qualifying purchases. Match the selected variant, condition and seller terms before ordering.
What differs between these models?
- Cache (MB): WD101FZBX lists 256; WD102FZBX lists 512.
- Sustained transfer (up to MB/s): WD101FZBX lists 263; WD102FZBX lists 267.
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 | WD101FZBX | WD102FZBX |
|---|---|---|
| Manufacturer | Western Digital | Western Digital |
| Product family | WD_BLACK | WD_BLACK |
| Model number | WD101FZBX | WD102FZBX |
| Capacity (TB) | 10 | 10 |
| RPM | 7200 | 7200 |
| Interface | SATA 6Gb/s | SATA 6Gb/s |
| Recording | CMR | CMR |
| Cache (MB) | 256 | 512 |
| Form factor | 3.5-inch | 3.5-inch |
| Manufacturer limited warranty | 5 years (eligible new drives) | 5 years (eligible new drives) |
| Sustained transfer (up to MB/s) | 263 | 267 |
Compatibility and buying checks
- Compare new and renewed offers separately. The manufacturer specification does not guarantee the warranty or return policy of a marketplace seller.
Manufacturer sources
WD101FZBX
Western Digital WD_BLACK manufacturer datasheet ↗
Reviewed 2026-08-21. Published specifications; no independent benchmark or failure-rate claim.
WD102FZBX
Western Digital WD_BLACK manufacturer datasheet ↗
Reviewed 2026-08-21. Published specifications; no independent benchmark or failure-rate claim.