usb 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 hubusb ... 2.04 usb ... rate at 1.5 / 12 / 480Mbpsh) Adds 4 USB 2.0 hi - speed ports usb hub,usb port hub,4 port usb hub,usb 2.0 hub