Add much-needed USB 2.0 ports to your computer. Connect multiple devices & save critical desktop space at the same time. Top-load ports provide easy, hassle-free inputs. Internal weight & stay-put pads keep the unit securely in place. Over-current protection ensures that all of your devices stay safe. Number of Ports: 4; for Use With: Notebook PC; Transfer Rate: 480 MBps; Color(s): White.