USB 2.0 memory card reader that works with all common used memory cards to transfer your pictures and videos to your computer. Works with all common used memory cards Including USB extension cable USB 2.0 connection System requirements Windows 7, Vista or XP Intel-based Mac with Mac OS X 10.5 (Leopard) or higher (all cards supported except SDXC) USB port (USB 2.0 recommended) Some cards require an adapter