... and play hot swapping 3.High speed datatransmission 4.Interface:USB - Lightweight, compact and convenient - Perfect promotional item for conferences, trade ... etc - Built-in LED indicates power, read/write - High speed USB 2.0, supports plug and play, easy to use - Optional ... 2K, Windows XP, Mac8.6 and above,Linux 2.4 Card Reader ,High speed data transmission ...