Western Digital WD Red 4TB 3.5" SATA 6Gb/s 5400RPM 150MB/s 256MB Cache HDD 
WD40EFRX
 
DESCRIPTION
WD Red Provides Storage Compatible with Leading NAS SystemsWith drives up to 14TB, the WD Red series offers a wide array of solutions for customers looking to build a high performing NAS storage solution. WD Red drives are built for up to 8-bay NAS systems, and pack the power to store your precious data in one powerhouse unit. Increase the efficiency and productivity of your business with WD Red Pro drives, available for up to 24-bay NAS systems.
PC drives aren’t typically tested or designed for the rigors of a NAS system. Do right by your NAS and choose the drive with an array of features to help preserve your data and maintain optimum performance.