| WD Red 1 TB Hard Drive for NAS ( WD10EFRX)
Drive Specification Sheet (PDF)
![](/global/images/spacer.gif) Product Specifications | ![](/global/images/arrows/arrowup_4ppage.gif) | ![](/global/images/spacer.gif) | Interface | SATA 6 Gb/s | ![](/global/images/spacer.gif) |
![](/global/images/spacer.gif) Performance Specifications | ![](/global/images/arrows/arrowup_4ppage.gif) | ![](/global/images/spacer.gif) | Rotational Speed | IntelliPower * | ![](/global/images/spacer.gif) | Buffer Size | 64 MB | ![](/global/images/spacer.gif) |
Transfer Rates | ![](/global/images/spacer.gif) | Buffer To Host (Serial ATA) | 6 Gb/s (Max) | ![](/global/images/spacer.gif) |
![](/global/images/spacer.gif) Physical Specifications | ![](/global/images/arrows/arrowup_4ppage.gif) | ![](/global/images/spacer.gif) | Formatted Capacity | 1,000,204 MB | ![](/global/images/spacer.gif) | Capacity | 1 TB | ![](/global/images/spacer.gif) | User Sectors Per Drive | 1,953,525,168 | ![](/global/images/spacer.gif) |
![](/global/images/spacer.gif) Performance Specifications | ![](/global/images/arrows/arrowup_4ppage.gif) | Target Performance | ![](/global/images/spacer.gif) | MTBF | 1,000,000 hours | ![](/global/images/spacer.gif) |
![](/global/images/spacer.gif) Physical Dimensions | ![](/global/images/arrows/arrowup_4ppage.gif) | English | ![](/global/images/spacer.gif) | Height | 1.028 Inches | ![](/global/images/spacer.gif) | Depth | 5.787 Inches | ![](/global/images/spacer.gif) | Width | 4.00 Inches | ![](/global/images/spacer.gif) | Weight | 0.99 Pounds | ![](/global/images/spacer.gif) |
Metric | ![](/global/images/spacer.gif) | Height | 26.1 mm | ![](/global/images/spacer.gif) | Depth | 147 mm | ![](/global/images/spacer.gif) | Width | 101.6 mm | ![](/global/images/spacer.gif) | Weight | 0.45 kg | ![](/global/images/spacer.gif) |
![](/global/images/spacer.gif) Environmental Specifications | ![](/global/images/arrows/arrowup_4ppage.gif) | Shock | ![](/global/images/spacer.gif) | Operating Shock (Read) | 65G, 2 ms | ![](/global/images/spacer.gif) | Non-operating Shock | 350G, 2 ms | ![](/global/images/spacer.gif) |
Acoustics | ![](/global/images/spacer.gif) | Idle Mode | 21 dBA (average) | ![](/global/images/spacer.gif) | Seek Mode 0 | 22 dBA (average) | ![](/global/images/spacer.gif) |
Temperature (English) | ![](/global/images/spacer.gif) | Operating | 32° F to 158° F | ![](/global/images/spacer.gif) | Non-operating | -40° F to 158° F | ![](/global/images/spacer.gif) |
Temperature (Metric) | ![](/global/images/spacer.gif) | Operating | -0° C to 70° C | ![](/global/images/spacer.gif) | Non-operating | -40° C to 70° C | ![](/global/images/spacer.gif) |
Humidity | ![](/global/images/spacer.gif) | Operating | 5-95% RH non-condensing | ![](/global/images/spacer.gif) |
Vibration | ![](/global/images/spacer.gif) | Operating | 0.004 g²/Hz (10 to 300 Hz) | ![](/global/images/spacer.gif) | Non-operating | 0.05 g²/Hz (10 to 300 Hz) | ![](/global/images/spacer.gif) |
![](/global/images/spacer.gif) | Operating | ![](/global/images/spacer.gif) | Linear | 20-300 Hz, 0.75G (0 to peak) | ![](/global/images/spacer.gif) |
![](/global/images/spacer.gif) Electrical Specifications | ![](/global/images/arrows/arrowup_4ppage.gif) | Current Requirements | ![](/global/images/spacer.gif) | 12 VDC | ![](/global/images/spacer.gif) | Read/Write | 190 mA | ![](/global/images/spacer.gif) | Idle | 180 mA | ![](/global/images/spacer.gif) | Standby | 7 mA | ![](/global/images/spacer.gif) | Sleep | 7 mA | ![](/global/images/spacer.gif) |
![](/global/images/spacer.gif) | 5 VDC | ![](/global/images/spacer.gif) | Read/Write | 280 mA | ![](/global/images/spacer.gif) | Idle | 215 mA | ![](/global/images/spacer.gif) | Standby | 105 mA | ![](/global/images/spacer.gif) | Sleep | 105 mA | ![](/global/images/spacer.gif) |
![](/global/images/spacer.gif) | Power Dissipation | ![](/global/images/spacer.gif) | Read/Write | 3.70 Watts | ![](/global/images/spacer.gif) | Idle | 3.20 Watts | ![](/global/images/spacer.gif) | Standby | 0.60 Watts | ![](/global/images/spacer.gif) | Sleep | 0.60 Watts | ![](/global/images/spacer.gif) |
As used for storage capacity, one megabyte (MB) = one million bytes, one gigabyte (GB) = one billion bytes, and one terabyte (TB) = one trillion bytes. Total accessible capacity varies depending on operating environment. As used for buffer or cache, one megabyte (MB) = 1,048,576 bytes. As used for transfer rate or interface, megabyte per second (MB/s) = one million bytes per second, megabit per second (Mb/s) = one million bits per second, and gigabit per second (Gb/s) = one billion bits per second. |
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