WD Western Digital HDD WD40EFAX 4TB

Western Digital Red Weight & dimensions

Depth 147 mm Weight 570 g Height 26.1 mm Width 101.6 mm

Features

Native Command Queuing (NCQ) Y HDD interface transfer rate 6 Gbit/s 24/7 operation Y HDD size 3.5 HDD sustained transfer rate 180 MiB/s HDD capacity 4000 GB Noise level (idle) 23 dB Advanced Format (AF) Y Start/stop cycles 600000 Type HDD Storage drive buffer size 256 MB HDD speed 5400 RPM Mean time between failures (MTBF) 1000000 h Hot-swap N Component for NAS Workload rate limit 180 TB/year RoHS compliance Y Interface Serial ATA III

Operational conditions

Storage temperature (T-T) -40 - 70 °C Non-operating shock 250 G Operating shock 65 G Operating temperature (T-T) 0 - 60 °C

Power

Power consumption (write) 4.8 W Start-up current 1.75 A Power consumption (standby) 0.4 W Operating voltage 5 / 12 V Power consumption (read) 4.8 W Power consumption (idle) 3.1 W

Packaging data

Quantity 1 Storage drive adapter included N