Western Digital RED WD40EFRX RED NAS

4TB INTELLIPOWER/DDR2/3.5

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Description

Features

  • Designed for home and small office NAS systems
  • Features NASware technology
  • 4TB Storage capacity
  • 3.5″ Form factor
  • SATA 6GB/s interface
  • IntelliPower rotational performance
  • 64MB Cache
  • 3 Year warranty

Specifications

General
Interface SATA 6 Gb/s
Rotational Speed IntelliPower
Buffer Size 64 MB
Transfer Rates
Buffer To Host (Serial ATA) 6 Gb/s (Max)
Physical
Formatted Capacity 4,000,592 MB
Capacity 4TB
Performance
Target Performance
MTBF 1,000,000 hours
Physical Dimensions
Height 26.1 mm
Depth 147 mm
Width 101.6 mm
Weight 0.635 kg
Environmental
Shock
Operating Shock (Read) 65G, 2 ms
Non-operating Shock 250G, 2 ms
Acoustics
Idle Mode 23 dBA (average)
Seek Mode 0 24 dBA (average)
Temperature
Operating -0° C to 70° C
Non-operating -40° C to 70° C
Humidity
Operating 5-95% RH non-condensing
Vibration
Operating 0.004 g²/Hz (10 to 300 Hz)
Non-operating 0.05 g²/Hz (10 to 300 Hz)
Operating – Linear 20-300 Hz, 0.75G (0 to peak)
Electrical
Current Requirements
12 VDC
Read/Write 250 mA
Idle 230 mA
Standby 7 mA
Sleep 7 mA
5 VDC
Read/Write 280 mA
Idle 260 mA
Standby 105 mA
Sleep 105 mA
Power Dissipation
Read/Write 4.40 Watts
Idle 4.10 Watts
Standby 0.60 Watts
Sleep 0.60 Watts