1 Can read and insert Micro SD+T-FLASH etc Quick memory card, and without adapter;
2 USB socket, USB 2.0 USB1.1 compatibal, Digital transmit speed attached to 480Mb/seconds, no need extro power, LED display.
3 attach a convenience item to hang a ring
4 System requirements: Windows98, ME, 2000, XP, Vista Or higher edition;