... hub,usb port hub,4 port usb hub,usb 2.0 hub usb 2.0 4 usb ports SMT IC ... usb hub,usb port hub,4 port ... usb hub,usb 2.0 ... detection and protectione) Fully compliant with USB 2.0 specifications, backwardly compatible with USB 1.1f) Supports ... at 1.5 / 12 / 480Mbpsh) Adds 4 USB 2.0 hi - speed ports usb hub,usb port hub ...