HP PD1600 Pocket Media Drive 160 GB USB 2.0 Portable Hard Drive 2.5-inch 160 GB external hard drive fits into chassis slot of select HP computers and works with any computer with USB 2.0 USB 2.0 connection for up to 480 Mbps transfer rate Activity and power LED indicators; bus-powered; includes Sonic Backup MyPC software 1-year limited warranty Device measures 3.18 x 0.63 x 5.38 inches (WxHxD)