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    WD 4TB WD40EFRX 64MB SATA III RED (NAS)

    Manufacturer: Wd
    Every component, line of code, and product decision was built on our passion and determination to deliver the best NAS experience.The next generation of WD Red hard drives delivers on this promise with massive capacity and NASware 2.0, which further improves drive reliability and protects your data in the event of a power loss or power disruption.
    SKU: CHD0054
    Availability: Out of stock
    €120.01 incl VAT
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    Product Specifications
    Interface SATA 6 Gb/s


    Performance Specifications
    Rotational Speed IntelliPower *
    Buffer Size 64 MB

    Transfer Rates
    Buffer To Host (Serial ATA) 6 Gb/s (Max)


    Physical Specifications
    Formatted Capacity 4,000,787 MB
    Capacity 4 TB
    Form Factor 3.5 Inch
    User Sectors Per Drive 7,814,037,168


    Performance Specifications
    Target Performance
    MTBF 1,000,000 hours


    Physical Dimensions
    English
    Height 1.028 Inches
    Depth 5.787 Inches
    Width 4.00 Inches
    Weight 1.50 Pounds

    Metric
    Height 26.1 mm
    Depth 147 mm
    Width 101.6 mm
    Weight 0.68 kg


    Environmental Specifications
    Shock
    Operating Shock (Read) 65G, 2 ms
    Non-operating Shock 250G, 2 ms

    Acoustics
    Idle Mode 25 dBA (average)
    Seek Mode 0 28 dBA (average)

    Temperature (English)
    Operating 32° F to 158° F
    Non-operating -40° F to 158° F

    Temperature (Metric)
    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 Specifications
    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 4.50 Watts
    Idle 3.30 Watts
    Standby 0.40 Watts
    Sleep 0.40 Watts


    Compatibility
    Operating System
    Compatibility Windows/Mac/Linux