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HDD SATA 4TB WD RED – WD40EFRX

SKU: WD40EFRX
Availability:

In stock

AED474.00 AED529.00

In stock

WD RED NAS HARD DRIVE

Segment

WD RED

Specification

Model Number¹

WD40EFRX
Interface SATA 6 Gb/s
Formatted capacity² 4TB
Form factor 3.5-inch
Native command queuing Yes
Advanced Format (AF) Yes
RoHS compliant³ Yes

Performance

Interface Transfer Rate² (read speed) up to 150 MB/s
Cache (MB)² 64
Performance Class 5400 RPM Class

Reliability/Data Integrity

Load/unload cycles⁴ 600,000
Non-recoverable errors per bits read <1 in 1014
MTBF (hours)⁵ 1,000,000
Workload Rate (TB/year)⁶ 180
Limited warranty (years) 1 Year Warranty

Power Management8

12VDC ±5% (A, peak)

5VDC ±5% (A, peak)

Average power requirements (W) 

1.73
Read/Write 4.5
Idle 3.3
Standby and Sleep 0.4

Environmental Specifications⁹

Temperature (°C)

Operating 0 to 65
Non-operating -40 to 70

Shock (Gs)

Operating, (2 ms, read/write)  30
Operating, (2 ms, read) 65
Non-operating (2 ms) 250

Acoustics (dBA)10

Idle 25
Seek (average) 28

Physical Dimensions

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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