4TB WD Caviar Red SATA3 product
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HDDPC4WDWD40EFRXHDDPC4WDWD40EFRXHDDPC4WDWD40EFRX

4TB WD Caviar® Red™, NAS, SATA 6Gb/s, 64MB, 3.5"(8.89 cm)

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    255.10 лв
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    Описание

    WD Red 4 TB Hard Drive for NAS
    (WD40EFRX)

    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
    User Sectors Per Drive 7,814,037,168

    Performance Specifications

    Target Performance
    MTBF 1,000,000 hours

    Physical Dimensions

    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
    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


    Виж още Твърди дискове Вътрешни Western Digital

    Технически характеристики

    Размер:  3.5" (8.89cm)
    Капацитет:  4000 GB
    Интерфейс:  SATA3
    Обороти:  5400 rpm

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