Western Digital Red 3TB 3.5" Internal Hard Drive - WD30EFRX

  • 3TB
  • HDD
  • 3.5"

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The right choice!
No other drive is designed specifically for home and small office NAS systems.
Exclusive NASware technology.
Our exclusive technology, NASware™, makes WD Red thrive in the demanding small-NAS environment.
Energy efficient and money saving.
We keep power consumption low which keeps your NAS system happy and your wallet, too.
NAS compatibility.
NASware – Advanced firmware technology built into every WD Red drive, enables seamless integration, robust data protection and optimal performance for systems operating in NAS and RAID environments.
The secret is in the technology.
WD’s exclusive NASware technology improves NAS storage performance by reducing common hard drive concerns in NAS systems including concerns for things like compatibility, integration, upgrade ability, reliability and cost of ownership that are experienced with a hard drive designed for desktop computers.
3D Active Balance Plus.
Our enhanced dual-plane balance control technology significantly improves the overall drive performance and reliability. Hard drives that are not properly balanced may cause excessive vibration and noise in a multidrive system, reduce the hard drive life span, and degrade the performance over time.
Enhanced reliability.
Your NAS systems is always on, a highly reliable drive is essential. With a 35% MTBF improvement over standard desktop drives, the WD Red drive is designed and manufactured to be a more reliable and robust solution.
Energy efficient.
Reduce your electricity bill and carbon footprint with WD Red drives. Innovative technology reduces power consumption and lowers the operating temperature, resulting in a more reliable and affordable solution for always on 24x7 NAS environments.
Premium support.
Exclusively for WD Red drive customers, our free dedicated 24/7 support line is available in English. Other regional support hours vary.
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     3,000,592 MB
    Capacity     3 TB
    User Sectors Per Drive     5,860,533,168
Performance Specifications     
Target Performance

    MTBF     1,000,000 hours
Physical Dimensions     

    Height     1.028 Inches
    Depth     5.787 Inches
    Width     4.00 Inches
    Weight     1.40 Pounds
    Height     26.1 mm
    Depth     147 mm
    Width     101.6 mm
    Weight     0.635 kg
Environmental Specifications     
    Operating Shock (Read)     65G, 2 ms
    Non-operating Shock     250G, 2 ms
    Idle Mode     23 dBA (average)
    Seek Mode 0     24 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
    Operating     5-95% RH non-condensing
    Operating     0.004 g²/Hz (10 to 300 Hz)
    Non-operating     0.05 g²/Hz (10 to 300 Hz)
    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     4.40 Watts
    Idle     4.10 Watts
    Standby     0.60 Watts
    Sleep     0.60 Watts

Quick Specifications