... X, and Linux OS or aboveHi-speed downstream ports with USB a female connectorUser-friendly and ergonomic design, ... Easy to carrySupply several color optionaStatus shows fashionableextensively compatible with scanner, digital camera,digital vidicon,optical mouse,keyboard , ... .support CE,FCC ,ROHS.single chip integrated usb hub controller with embedded porprietary processor. Thanks for your enquiry , we ...