Western Digital · NAS
WD141KFGX
WD Red Pro 14TB
SATA 6Gb/s · 3.5-inch · CMR
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Listing details ↓As an Amazon Associate I earn from qualifying purchases.The Western Digital WD141KFGX is a 14TB WD Red Pro hard drive for NAS storage, using SATA 6Gb/s in a 3.5-inch form factor.
Manufacturer specifications
| Model number | WD141KFGX |
|---|---|
| Nominal capacity | 14 TB · 14000 GB |
| RPM | 7200 |
| Interface | SATA 6Gb/s |
| Recording | CMR |
| Cache (MB) | 512 |
| Form factor | 3.5-inch |
| Workload rating (TB/year) | 550 |
| Physical sector size (bytes) | 4096 |
| Manufacturer limited warranty | 5 years (eligible new drives) |
| Sustained transfer (up to MB/s) | 255 |
Source: Western Digital WD Red Pro 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 255 MB/s sustained transfer, as specified by the manufacturer. This is not a measured game-loading or random-I/O result.
- 550 TB/year workload rating. This is a workload limit, not a promise of drive lifespan or a backup guarantee.
Before ordering
Match WD141KFGX, 14TB 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 B083VQZP2Q
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 · IronWolf Pro
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14TB · SATA 6 Gb/s · CMR
Compare with WD141KFGX →View on Amazon US ↗ASIN B0B94P481H · Check price and conditionSeagate · IronWolf Pro
ST14000NE0008
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Compare with WD141KFGX →View on Amazon US ↗ASIN B07GTGDZP8 · Check price and conditionToshiba · MG09
MG09ACA14TE
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Compare with WD141KFGX →View on Amazon US ↗ASIN B0DPLXNXRL · Check price and conditionWD141KFGX questions answered
Is WD141KFGX CMR or SMR?
The manufacturer lists CMR recording for WD141KFGX. Other models and capacities in the same family can differ.
What connection does WD141KFGX need?
WD141KFGX 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 WD141KFGX provide?
Its nominal capacity is 14000 GB, approximately 13038.5 GiB before formatting. The filesystem, reserved space and any RAID redundancy reduce usable capacity further.
What warranty is listed for WD141KFGX?
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.