Western Digital 4TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 128 MB Cache, 3.5 - WD40EFZZ

The WD Red Plus WD40EFZZ is an internal 3.5-inch HDD with 4TB capacity, intended for use in network attached storage (NAS) systems, i.e. home or corporate network storage. It is part of the Western Digital WD Red Plus product line - specifically designed for small and medium business NAS environments or demanding home NAS. This HDD is optimized for continuous operation and is especially aimed at users who want to store, backup or share large amounts of data on the net-such as media libraries, backups or shared data pools.