Western Digital WD4000YS RE2 400GB 7.2K Enterprise SATA Hard Drive
Capacity: 400GB
Spindle Speed: 7,200RPM
Interface Type: SATA
Disk Size: 3.5″x1.0″ (LFF Hard Drive)
Sustained Throughput (MBps): 98
Average Seek Time (read/write ms): 8.7
Electrical Interface Speed: SATA 300 – 3.0Gbps
On-Board Cache: 16MB
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 WD RE 7200 RPM hard drives are engineered to thrive in a high duty cycle RAID system while still offering traditional low cost-per-capacity desktop value. Designed and MANUFACTURED Product Benefits Superior reliability — tested to 1 million hours MTBF at high duty cycle, these enterprise drives are designed and MANUFACTURED Fast — with up to 3.0 Gb/s data transfer rate, and up to 16 MB cache, these drives deliver optimum performance in nearline server ENVIRONMENTS Low power — Active Power Save™ delivers best-in-class seek mode power consumption through advanced WD firmware that conserves power in active seek modes without degrading performance. RAID-specific, time-limited error recovery (TLER) — a feature pioneered by WD that significantly reduces drive fallout caused by extended drive error-recovery processes common to desktop drives. Compatibility This drive is compatible with any of our SATA hot SWAP  | 
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| Specifications | |
|---|---|
| Model number | WD4000YS | 
| Model Name | RE2 | 
| Formatted Capacity | 400 Gbytes | 
| Rotational Speed | 7,200 rpm | 
| Default Buffer (cache) Size | 16 Mbytes | 
| Performance | |
| External (I/O) Transfer Rate (max) | 3.0 Gb/s | 
| Average Latency | 4.2 msec | 
| Physical | |
| Form Factor(width) | 3.5-inch | 
| Form Factor(height) | 1-inch | 
| Height | 25.4 mm | 
| Width | 101.6 mm | 
| Length | 146.05 mm | 
| Reliability | |
| MTBF (Hours) | 1,000,000 hours | 
| Nonrecoverable Read Errors | 1 per 10^14 bits read | 
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