Western Digital WD4000YS

Price $142.23

WDs RAID Edition hard drives are the worlds most reliable server-class SATA drives in the market. With 1.2 million hours MTBF, 100 duty cycle, up to 3.0 Gb/s SATA technology, and best-in-class vibration tolerance, WD RE2 drives offer the best combination of superior reliability, high capacity, and optimum performance for enterprise applications.

Key Features

Spindle Speed 7200 RPM

Warranty 5 Years

Form Factor 3.5"-internal

Formatted Capacity 400GB

Weight 1.32 lb

Dimensions WxDxH 4" x 5.787" x 1.028"

Compliant Standards N/A

Interface Type SATA

Cache/Buffer Size 16MB

Mean Time Before Failure 1, 200, 000 power on hours

Average Seek Time 8.9ms

Detail Specifications

Capacity - 400 GB

Buffer Size - 16 MB

Rotational Speed - 7200 RPM

Average Latency - 4.20 ms (nominal)

Seek Times

-Read Seek Time - 8.7 ms

-Track-To-Track Seek Time - 0.6 ms (average)

-Full Stroke Seek - 21.0 ms (average)

Transfer Rates

-Buffer To Host (Serial ATA) - 3.0 Gb/s (Max)

-Buffer To Disk - 70 MB/s (Sustained)

-Interface SATA 3 GB/s

Dimensions (W x D x H) - 4 x 5.787 x 1.028 inches , 101.6 x 147 x 26.1 mm

Weight - 1.32 lbs / 0.6 kg

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