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

Vote: Thumbs Down or Thumbs Up Our 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?