usb flash drive- oem item no.: usb001 1) usb 1.1/2.0 compliant, hot plug and play. (default: usb 2.0) 2) no external power is required, powered by usb bus directly 3) compatible between different operating systems 4) electronic storage device, no mechanical components, shake protection, electromagnetic wave protection 5) write / delete protection switch 6) pc compatible, mac compatible with usb port 7) optional capacity: 64mb - 4gb hcg international limited: china usb flash disk manufacturer, supplier, exporter wholesaler. our factory supply, export, wholesale, offer usb flash drive- oem from shenzhen, guangdong, china. (drives & storage devices:usb flash disk,usb memory drive,oem usb drives,oem usb disk..) usb flash drive- oem, usb001 manufacturer.