Western Digital 60GB Internal 2.5" Hard Drive (WD600VERTL) 60 GB, 2.5" internal notebook hard drive Fast performance: 5400 RPM spindle speed, 12 ms. seek time, 8 MB cache Operates quietly using WhisperDrive technology with SoftSeek algorithms Rigid stainless steel cover and ShockGuard protect internal components Efficient operation means power requirements are comparable to much slower drives