Tested For Compatibility
We perform tests on hundreds of systems and a multitude of platforms in our F.I.T. Lab to give our customers confidence that our drives will work in their systems.
Low Power Consumption
State-of-the-art seeking algorithms and advanced power management features help ensure low power consumption.
NoTouch™ Ramp Load Technology
Safely positions the recording head off the disk surface to protect your data.
Upgrading Your Drive is Easy
Seamlessly migrate your current system to your new Western Digital drive using Acronis® True Image™ WD Edition cloning software available as a free download on the WD Support site. This software enables you to copy all your data to a new drive so you don’t have to reinstall your operating system to get all the benefits of a new drive.
| Warranty & Returns | Return & Exchange Final sale no refund or exchange Manufacturing Defect Exchange 30 Days Defective Exchange Only Courtesy Warranty Repair Shipment Service Manufacturer Warranty Only |
|---|---|
| Specification | Brand WesternDigital Model WD40EFZX FormFactor 3.5 HardDriveCapacity 4TB RotationalSpeed 5400RPM HardDriveInterface SATAIII6GB/s Height 26.1mm Width 101.6mm Depth 147mm Weight 450g |
