Main features:– Simultaneously read and write on 4 cards, plugs directly into the USB port on any desktop or notebook computer, offers effortless file sharing in any situation– Small and flexible design, this card reader can be rotated by 90 degrees, and it is small enough to slip into your pocket or briefcase for superior convenience– With a LED indicator, you will see whether it is working or not easily– Compatible with Windows 98 / ME / 2000 / XP / Vista or Mac OS 9.1 and above, supports most the cards such as CF, SD, MS, Micro SD, etc. (Click here to download Windows 98 driver)– Adopt USB 2.0 technology, the transmission speed up to 480Mbps, compatible with USB 1.1, supports hot-swap