The 4TB Ultrastar 7200 rpm SATA 3.5" Internal Data Center HDD from WD is an enterprise-grade drive designed for demanding 24×7 data storage solutions. Ultrastar drives are built to be durable, using CMR technology and featuring up to an error tolerance of <1 in 1015, a MTBF rating of 2 million hours, and an Annualized Failure Rate (AFR) of 0.44%, depending on the model. Endurance aside, this drive offer fast 7200 rpm performance with 256 MB of cache and data transfer speeds of up to 233 MB/s.
Description
Additional information
| Weight | 1.64 lbs |
|---|---|
| Dimensions | 7.55 × 5.05 × 2.8 in |
| Storage Capacity | 4 TB |
| Non-Recoverable Read Errors per Bits Read | < 1 in 1014 |
| Dimensions (W x H x D) | 4 x 1 x 5.8" / 101.6 x 25.4 x 147.32 mm |
| Certifications | RoHS, as per Manufacturer |
| Storage Temperature | -40 to 158°F / -40 to 70°C |
| Operating Temperature | 41 to 140°F / 5 to 60°C |
| Storage Shock | 300 G / 2.0 ms |
| Operating Shock | 70 G / 2.0 ms |
| Supported Voltage | 5 VDC, 12 VDC |
| Power Draw | 7.0 W (Active)<br />5.9 W (Idle) |
| Mean Time Between Failures (MTBF) | 2.0 Million Hours |
| Cache Memory | 256 MB |
| Load/Unload Cycles | 600, 000 |
| Annualized Failure Rate (AFR) | 0.44 % |
| Spindle Speed (RPM) | 7200 RPM |
| Noise Level | 29.0 dB (Idle)<br />36.0 dB (Active) |
| Form Factor | 3.5" |
| Drive Type | HDD |
| Read Speed | Maximum: 233 MB/s |
| Interface | SATA III (6 Gb/s) |
| Warranty Length | Limited 5-Year Warranty |
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