|Standing screen display size||3.5 Inches|
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|Digital storage capacity||4 TB|
|Hardware interface||SATA 6.0 Gb/s|
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WD Red 4TB NAS Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - WD40EFRX Specifically designed for use in NAS systems with up to 8 bays Supports up to 180 TB/yr workload rate* |*Workload Rate is defined as the amount of user data transferred to or from the hard drive NASware firmware for compatibility
There’s a leading edge WD Red drive for every compatible NAS system to help fulfill your data storage needs. With drives up to 12TB, WD Red drives offer a wide array of solutions for customers looking to build a NAS storage solution.
Since your NAS system is always on, a reliable drive is essential. With an MTBF (mean time before failure) of up to 1 million hours and a supported workload rate of up to 180 TB/yr, the WD Red drive with NASware 3.0 technology is designed for the 24x7 environment.
Keep it Cool
The always-on environment of a NAS or RAID is a hot one. WD Red drives are engineered to run cool and quiet while offering optimum compatibility for demanding 24x7 environments.
WD Red for Home and Small Business Owners
Use WD Red HDD at your home or business to stream, backup, organize and effortlessly share your content. With NASware technology built into every drive, you’ll never have to worry about compatibility with your NAS system.
|WD Red||WD Red Pro|
|Application||Up to 8-bay NAS systems||Up to 24-bay NAS systems|
|Workload Rate (TB/yr)||180||300|
|Ideal for||Personal Home & Small Office NAS||Medium to Large Business NAS|
|Cache||16 MB - 256 MB||64 MB - 256 MB|
|Highest Available Capacity||12TB||12TB|
|Interface||SATA 6 Gb/s||SATA 6 Gb/s|