Toshiba 30GB UDMA/100 4200RPM 2.5-In 9.5mm NB HDD Toshiba 30 GB Notebook Hard Drive General Features: 30 GB formatted capacity 4200 RPM Spindle Speed Average Seek Time (read): 12 ms Average Latency: 7.14 ms 2 MB Buffer UDMA/100 Transfer Rate IDE Interface 2.5-inch drive 9.5 mm drive height Regulatory Approvals: UL CE TUV CSA