WD Travelstar 5K100 HTS541040G9AT00 - Hard drive - 40 GB - internal - 2.5in - ATA-100 - 5400 rpm - buffer: 8 MB

The Hitachi Travelstar 5K100 series delivers a winning combination of characteristics. With the industrys lowest idle power and enhancements to the mechanical and electrical design, this 5400 rpm drive is the ideal choice for notebook PCs. The Travelstar 5K100 is the best all-around 2.5in hard drive. The Travelstar 5K100 is the centerpiece of a line-up of strong contenders.