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Western Digital Caviar SE 2500JS HDD - SATA vs. SATA-II

By: Cameron Johnson | HDDs in Storage | Posted: Oct 3, 2005 4:00 am
TweakTown Rating: 8.0%Manufacturer: Western Digital

Specifications of the Western Digital Caviar SE


Let's take a quick look at the drive specifications before taking a closer look at the drive.


Performance Specifications


Rotational Speed: 7,200 RPM (nominal)


Buffer Size: 8 MB


Average Latency: 4.20 ms (nominal)


Seek Times


Read Seek Time: 8.9 ms


Track-To-Track Seek Time: 2.0 ms (average)


Full Stroke Seek: 21.0 ms (average)


Transfer Rates


Buffer To Host (Serial ATA): 300 MB/s (Max)


Buffer To Disk: 748 Mbits/s (Max)


Physical Specifications


Formatted Capacity: 250,059 MB


Capacity: 250 GB


Interface: SATA 300 MB/s


Bytes Per Sector: 512


User Sectors Per Drive: 488,397,168


Servo Type: Embedded


Physical Dimensions


Height: 26.1 mm (Max)


Length: 147 mm (Max)


Width: 101.6 mm


Weight: 0.6 kg (+/- .082 kg)


Pretty standard specifications except for the 300MB/s transfer speeds but will it make a difference in the real-world?


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