Western Digital · Desktop
WD6003FZBX
WD_BLACK 6TB
SATA 6Gb/s · 3.5-inch · CMR
Exact Amazon US product
$457.00
View on Amazon US ↗Used / renewed listing · ASIN B07X64KK53
Price as of Sep 12, 2026 04:46 UTC
The Western Digital WD6003FZBX is a 6TB WD_BLACK hard drive for desktop storage, using SATA 6Gb/s in a 3.5-inch form factor.
Manufacturer specifications
| Model number | WD6003FZBX |
|---|---|
| Nominal capacity | 6 TB · 6000 GB |
| RPM | 7200 |
| Interface | SATA 6Gb/s |
| Recording | CMR |
| Cache (MB) | 256 |
| Form factor | 3.5-inch |
| Manufacturer limited warranty | 5 years (eligible new drives) |
| Sustained transfer (up to MB/s) | 227 |
Source: Western Digital WD_BLACK manufacturer datasheet. Reviewed 2026-08-21. Published specifications, not our benchmark results.
What the specifications mean
- CMR recording is specified for this exact model. Check enclosure support and workload limits before installing it in an array.
- Up to 227 MB/s sustained transfer, as specified by the manufacturer. This is not a measured game-loading or random-I/O result.
Before ordering
Match WD6003FZBX, 6TB and SATA 6Gb/s against the selected offer. Check your system’s exact-model compatibility list and the seller’s warranty and return terms.
Amazon US listings
Exact model matches on Amazon.com. A verified ASIN identifies the product; it does not guarantee current stock. Check the selected variant, condition and seller.
Amazon US · ASIN B07X64KK53
$457.00 · as of Sep 12, 2026 04:46 UTC
Same-capacity alternatives with Amazon US links
These models share the drive type, interface class and capacity. Compare their specifications and your system requirements before choosing a replacement.
Seagate · Desktop HDD
ST6000DM001
6TB · SATA 6 Gb/s
Compare with WD6003FZBX →View on Amazon US ↗ASIN B013JPKYQC · Check price and conditionSeagate · BarraCuda
ST6000DM003
6TB · SATA 6 Gb/s · SMR
Compare with WD6003FZBX →View on Amazon US ↗ASIN B075WX2TKM · Check price and conditionWestern Digital · WD_BLACK
WD6004FZBX
6TB · SATA 6Gb/s · CMR
Compare with WD6003FZBX →View on Amazon US ↗ASIN B0D1TZTSJW · Check price and conditionWD6003FZBX questions answered
Is WD6003FZBX CMR or SMR?
The manufacturer lists CMR recording for WD6003FZBX. Other models and capacities in the same family can differ.
What connection does WD6003FZBX need?
WD6003FZBX uses SATA 6Gb/s and a 3.5-inch form factor. Match both with the computer, controller or enclosure. An M.2 slot, 2.5-inch bay and 3.5-inch bay are not interchangeable.
How much usable space does WD6003FZBX provide?
Its nominal capacity is 6000 GB, approximately 5587.9 GiB before formatting. The filesystem, reserved space and any RAID redundancy reduce usable capacity further.
What warranty is listed for WD6003FZBX?
Manufacturer specification: 5 years (eligible new drives). A renewed, used, OEM or imported offer can have different coverage. Check the serial number and seller terms before buying.