This promotion is for Rewards members only. To take advantage of exclusive offers like these, join Office Depot® OfficeMax® Rewards now!
WD Red WD40EFRX 4 TB 3.5" Internal Hard Drive - SATA Item # 663886
Thank you, you will now be redirected to comparisons.
Just a moment while we prepare the page
Check In-Store Availability
WD's exclusive NASware technology, built into every WD Red hard drive, improves NAS storage performance by reducing common hard drive concerns in NAS systems including concerns for things like compatibility, integration, upgradeability, reliability and cost of ownership that are experienced with a hard drive designed for desktop computers.
|Compatible Bay||3.5" x 1/3H|
|device connector type||SATA|
|hard drive type||Hard Drive|
|hard drive width||3.5 in.|
|Load / Unload Cycles||600,000|
|manufacturer||Western Digital Corporation|
|maximum data transfer rate||768 MB/s (6 Gbit/s)|
|Spindle Speed (rpm)||5400|
|storage capacity||4 TB|
|Weight (Approximate)||1.40 lb|
|Show More ▾|
Stream, backup, organize and effortlessly share your digital content to your TV, PC and more. NASware technology increases your drives' compatibility with your NAS system, for better playback with your devices.
Businesses thrive on productivity and efficiency, two guiding principles built into the design of the WD Red drive. Share and backup files at the speed of your business with a WD Red drive in your NAS.
Looking for maximum performance in a heavy use NAS? The WD Red Pro drive is designed to handle an increase in workload and system demand and features a 5-year limited warranty.
Desktop drives aren't purpose-built for NAS. But WD Red drives with NASware 3.0 are. Our exclusive technology takes the guesswork out of selecting a drive. We can help you find the perfect storage for your NAS system.
|Interface||SATA 6 Gb/s|
|Buffer Size||64 MB|
|Rotational Speed||5,400 RPM (nominal)|
|Form Factor||3.5 Inch|
|Metric Weight||0.68 kg|
|Metric Width||101.6 mm|
|Metric Height||26.1 mm|
|Metric Depth||147 mm|
Operating System Compatibility
WD Red$ 189.99
MVP of NAS
750 GB, 1 TB, 2 TB, 3 TB, 4 TB, 6 TB, 8 TB, 10 TB
SATA 6 Gb/s
16 MB, 64 MB, 128 MB, 256 MB
5,400 RPM (nominal)
2.5 Inch, 3.5 Inch