Hitachi Travelstar 5K160 HTS541680J9AT00 80GB UDMA/100 5400RPM 8MB 2.5" IDE Hard Drive 80 GB capacity, 5400 RPM spindle speed, 8 MB buffer, 2.5-inch form factor, 9.5 mm drive height IDE interface, UDMA/100 transfer rate 11 ms average seek time, 5.5 ms average latency