The IBM 7,200 rpm Hard Drive is a 40GB+, desktop internal hard drive. Compared to other desktop internal hard drives on the market, it is relatively inexpensive. Its burst transfer rate (which is how fast the drive moves data already in its cache into your computer) is 100 MBps.
IBM 160GB Serial ATA Hard Drive Part #:09N4254
Serial ATA Hard Drive, 7,200 rpm, 8 MB Buffer, 9 ms Seek Time, Standard 3.5", Connects Via 7-pin Serial ATA