Western Digital WD4000KS

This 400 GB internal hard drive, the Western Digital WD4000KS, runs at 7200 RPM RPM. The WD4000KS is a drive with a 300 MB/s data transfer rate, an 8.9 ms seek time, an 8.9 ms access time, and 16 MB of cache.

Western Digital Caviar SE16 WD4000KS 400GB Serial ATA 7200RPM Hard Drive w/16MB Buffer

For the best deal on the Western Digital WD4000KS, you'll want to compare prices before you buy. Our list of stores carrying the WD4000KS (located below) tracks merchants who often have bargain prices and great sales.