Western Digital WD Red 4TB NAS hard drive.

Model: WD40EFRX

Full model on label: WD40EFRX-68WT0N0

Capacity: 4TB (4,000GB). Windows will show about 3.63TB after formatting.

Form factor: 3.5 inch

Interface: SATA 6Gb/s

Cache: 64MB

Spindle: IntelliPower, 5400 RPM class

Recording: CMR (not SMR)

Firmware on label: NASware 3.0

Internal transfer rate: up to about 150 MB/s

Date on label: 22 Nov 2014

Made in Thailand

WHAT YOU GET

• The hard drive shown in the photos

• Drive only and cables. No screws, or retail box

GOOD FOR

• A home or small-office NAS bay

• Extra desktop storage and backups

• RAID, because this WD40EFRX is a CMR drive

CONDITION

Used, bare internal drive. Photos are of the actual unit. The serial number is on the label.