... driver required, plug & play 4)OEM available 4 port usb hub/new usb hub with speakerThis product is designed, the appearance of new, suitable ... 1M of the USB extension cable to satisfy the needs of ordinary computers, the product is imported from Germany PC plastic, transparent ... multi-function, pen, speakers,USB HUB as one of the2.Provides four high speed USB interface supports USB 2.0/1.1 interface ...