Technical Snapshot

The WD Black 4TB SATA is a desktop 3.5" hard disk drive for desktop PCs and external storage. Spinning at 7,200 RPM with a 256 MB cache buffer, it delivers sustained transfer rates up to 227 MB/s over a SATA 6Gb/s interface. backed by WD's storage reliability engineering. With 4TB 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 4TB SATA

SATA 6Gb/s · 3.5" · 7,200 RPM · 256 MB · 4TB

Total raw storage capacity of the drive.
Capacity 4TB
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 256 MB
Maximum sequential data transfer rate under sustained workloads.
Transfer 227 MB/s
MPNWD4005FZBX
EAN718037856001
CategoryHard Disk Drives
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Drive Specifications

Form Factor3.5"
InterfaceSATA 6Gb/s
RPM7,200 RPM
Cache256 MB
Sustained Transfer Rate227 MB/s
Power (Idle)6.5W
Power (Operating)6.9W

Full Specifications

Data sourced from WD product specifications
Drive
SeriesBlack
Capacity4TB
Form Factor3.5"
InterfaceSATA 6Gb/s
RPM7,200 RPM
Cache256 MB
Performance
Sustained Transfer Rate227 MB/s
Reliability
Power (Idle)6.5W
Power (Operating)6.9W
Product
BrandWD
SegmentDesktop
MPNWD4005FZBX
EAN718037856001
Physical
Weight0.77 kg
Package Dimensions22.225 x 15.24 x 7.62 cm

Support & Downloads

WD Black 4TB SATA Firmware UpdateLatest firmware · Check WD support
WD Support →
WD Black 4TB SATA DatasheetPDF · Technical specifications
WD Support →
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Frequently Asked Questions

Is the Black 4TB SATA compatible with my NAS?

Yes, the WD Black 4TB 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 4TB SATA in a RAID array?

The WD Black 4TB 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 4TB SATA?

The WD Black 4TB SATA delivers a maximum sustained data transfer rate of 227 MB/s. Actual performance in random I/O workloads will be lower, as is typical for mechanical hard drives.

How fast is the Black 4TB SATA?

The WD Black 4TB SATA spins at 7,200 RPM with a 256 MB cache buffer, delivering sustained transfer rates up to 227 MB/s. This provides solid performance for everyday desktop use.

How much power does the Black 4TB SATA consume?

The WD Black 4TB SATA draws 6.9W under operating load and 6.5W at idle.

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