WD Red Plus 4TB (256MB cache) Internal 3.5 inch SATA3 NAS HDD – WD40EFPX

Packed with power to handle NAS environments in home offices up to medium-sized businesses, WD Red Plus is ideal for helping protect, archive, and share valuable data in NAS systems with up to 8 bays. WD Red Plus NAS drives give you the flexibility, versatility, and confidence you need for your important home and work files.