Hitachi Travelstar 5K160 120GB SATA/150 5400RPM 8MB 2.5-Inch Hard Drive 120 GB capacity SATA/150 interface 5400 RPM spindle speed 8 MB buffer 5.5 ms average latency 11 ms average read seek time 2.5-inch form factor 9.5 mm drive height 325G operating shock 1000G non-operating shock Perpendicular Magnetic Recording (PMR) IrMnCr read head Thermal Fly-height Control (TFC)