... High speed Free sample micro usb hub combo card reader driver Specification:1. USB2.0 HUB 2.Support data ... camera,keyboard, Mouse, display, U disk,4. USB bus power Supply ,No external power supply required5. ... for both the mobile and desktop user.The hub works perfectly without external power, a compact, ... when connecting a power hungry device. This USB 2.0 device is backwards compatible so that ...