Material : plastic abs+ metal *version: usb2.0 version *capacity : 64mb 128mb 256mb 512mb 1gb 2gb 4gb 8gb 16gb 32gb 64gb... *plug and play *support windows 98/se/me/2000/xp linux 2.4 or above and machintosh8.6 or above with boot, support encryption, space partition, auto run (no calibrate function), usb hdd/zip dos starting function * at least 10 years of data retention *no external power required; powered by usb bus (4.5 to 5.5v) *payment terms : by t/t *delivery date ; 3-5 days Decided by client