Sony HDPS-M10 40GB Photo Storage Hard Disk Drive Portable 2.5-inch hard disk for handy storage of high-resolution images and any other file 40 GB capacity with Shock Protection System to protect data LCD display and Intelligent Power feature for longer battery life Supports Memory Stick, Memory Stick Duo, CompactFlash, and Microdrive USB 2.0 high-speed interface and built-in lithium-ion battery