Technical Snapshot

The WD Black 1TB SATA is a desktop 3.5" hard disk drive for desktop PCs and external storage. Spinning at 7,200 RPM with a 64 MB cache buffer, it delivers sustained transfer rates up to 150 MB/s over a SATA 6Gb/s interface. backed by WD's storage reliability engineering. With 1TB of raw storage capacity, it provides reliable storage for everyday desktop computing. Part of the WD Black product line.

Use Case
Desktop storage, gaming, general computing
Compatibility
Standard 3.5" drive bay, SATA 6Gb/s interface
Category
Desktop Hard Disk Drive — WD Black
WD BLACK Image not available
WD HDD
WD Black

Black 1TB SATA

SATA 6Gb/s · 3.5" · 7,200 RPM · 64 MB · 1TB

Total raw storage capacity of the drive.
Capacity 1TB
Rotational speed of the disk platters. Higher RPM provides faster sequential and random I/O performance.
RPM 7,200
On-drive DRAM buffer for caching frequently accessed data and optimizing read/write operations.
Cache 64 MB
Maximum sequential data transfer rate under sustained workloads.
Transfer 150 MB/s
MPNWD1003FZEX
EAN718037786469
CategoryHard Disk Drives
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Drive Specifications

Form Factor3.5"
InterfaceSATA 6Gb/s
RPM7,200 RPM
Cache64 MB
Sustained Transfer Rate150 MB/s
Power (Idle)6.5W
Power (Operating)6.9W

Full Specifications

Data sourced from WD product specifications
Drive
SeriesBlack
Capacity1TB
Form Factor3.5"
InterfaceSATA 6Gb/s
RPM7,200 RPM
Cache64 MB
Performance
Sustained Transfer Rate150 MB/s
Reliability
Power (Idle)6.5W
Power (Operating)6.9W
Product
BrandWD
SegmentDesktop
MPNWD1003FZEX
EAN718037786469
Physical
Package Dimensions22.225 x 15.24 x 7.62 cm

Support & Downloads

WD Black 1TB SATA Firmware UpdateLatest firmware · Check WD support
WD Support →
WD Black 1TB SATA DatasheetPDF · Technical specifications
WD Support →
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Frequently Asked Questions

Is the Black 1TB SATA compatible with my NAS?

Yes, the WD Black 1TB SATA uses a standard SATA 6Gb/s interface and 3.5" form factor, compatible with any NAS that accepts 3.5" SATA drives. It is widely supported by Synology, QNAP, TrueNAS, and Unraid systems.

Can I use the Black 1TB SATA in a RAID array?

The WD Black 1TB SATA is a desktop drive. While it can physically work in a RAID array, desktop drives lack the error recovery tuning (TLER/ERC) that RAID controllers expect. For RAID deployments, consider enterprise or NAS-rated drives for better reliability.

What is the transfer speed of the Black 1TB SATA?

The WD Black 1TB SATA delivers a maximum sustained data transfer rate of 150 MB/s. Actual performance in random I/O workloads will be lower, as is typical for mechanical hard drives.

How fast is the Black 1TB SATA?

The WD Black 1TB SATA spins at 7,200 RPM with a 64 MB cache buffer, delivering sustained transfer rates up to 150 MB/s. This provides solid performance for everyday desktop use.

How much power does the Black 1TB SATA consume?

The WD Black 1TB SATA draws 6.9W under operating load and 6.5W at idle.

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MPN: WD1003FZEX
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