WD 40EFRX

Capacity: 4000GB

 6,836.82

Published on: 5 June 2018

There’s a WD red drive for every compatible NAS system to help fulfill your data storage needs. With drives up to 10tb, WD red offers a wide array of solutions for customers looking to build a high performing NAS storage solution. Built for single-bay to 8-bay NAS systems, WD red packs the power to store your precious data in one powerhouse unit. With WD red, you’re ready for what’s next.

Product Type Hard Disk Drive
Model Number WD40EFRX
Interface SATA 6 Gb/s
Formatted Capacity 2 4 TB
Advanced Format (AF) Yes
Form Factor 3.5-inch
RoHS compliant3 Yes
Data transfer rate (max)
Buffer to host
Host to/from drive (sustained)
6 Gb/s 150 MB/s
Cache (mb) 64
Rotational speed (RPM) 5400 RPM Class
Load/Unload Cycles 300000
Non-recoverable Read Errors Per Bits Read <1 in 1014
Limited warranty (years) 3
12VDC ±10% (A, peak) 1.75
Average power requirements (W)
Read/Write
Idle
Standby/Sleep
4.5
3.3
0.4
Temperature (°C)
Operating
Non-operating
0 to 65
-40 to 70
Shock (Gs)
Operating (2 ms, write)
Operating (2 ms, read)
Non-operating (2 ms)
30
65
250
Acoustics (dBA)7
Idle
Seek (average)
25
28
Height (in./mm, max) 1.028/26.1
Length (in./mm, max 5.787/147
Width (in./mm, ± .01 in.) 4/101.6
Weight (lb./kg, ± 10% 1.50/0.68

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