Toshiba MK4025GAS 40GB Superslim ATA/100 Internal Hard Drive (HDD2190) Toshiba 40 GB Notebook Hard Drive General Features: 40 GB formatted capacity UDMA/100 4200 RPM spindle speed 8 MB buffer 12 ms average seek time 7.14 ms average latency 2.5-inch form fac 9.5 mm drive height Power Specifications: DC +5V, 0.7A Regulatory Approvals: MIC BSMI UL CSA C-Tick