High Speed Hub 2.0 3 Ports With MULTI Card Reader Mini Combo All In One Splitter Adapter For PC Laptop Computer USB interface expanded to three, small, practical and convenient, expand three 2.0 USB interface, each power supply topped 500MA. Adopts second-generation ports on controller. Directly with computer connected, without external power supply, simple to use. Computer automatic identification installation, beardless driver, plug and play, inserted. USB2.0 interface, support USB1.0/1.1, transmission speeds 1.5/12/480MBPS. Built-in current over-load short-circuit protection device. System supported: Win95/98 / Me / 2000 / XP, Linux2.4 andMac os8.5 or above version. Streamline design, sectional area of super minityped 38x45mm. Biggest support 127 usb devices. Adopts the high quality electronic components, guarantee the stable operation. USB 2.0 plug-and-play. USB 2.0 x 3. Support CARDS such MS/Pro Duo, M2, the SD/skillfully, Micro SD.