Features: <br />1. High-speed USB3.0 protocol, compatible with USB2.0/1.1/1.0 transmission.<br />2. Super speed transmission. Up to 5Gb(Specifications). The transmission speed is 10 times of USB2.0 (480Mbps).<br />3. Computer USB extension design. The connection cable length: about 30 cm.<br />4. 4 ports design. Can connect 4 USB 3.0 and 3 USB 2.0 external devices. Super strong USB extension function, without being afraid of the quantity of devices.<br />5. USB ports are arranged in large space, thus no disturbance to each other when you plug and pull out. Convenient to use.<br />6. Each USB port has an independent switch to control power and blue LED indicator displays the switch status.<br />7. Support hot plug and pull. Plug and play, no need to install driver.<br />8. Support USB power supply. Can put into use even without external power supply.<br />9. With 3.5mm charging port. Can connect additional adapter of DC 5V to get you rid of the trouble low power when using devices with high power consumption.<br />10. Support Windows 2000/XP/VISTA/Win 7/MAC OS 10.0+<br />Name: 4 PORT 3.0 USB-HUB (With keys)<br />Model: 308<br />Color: Black <br />LED indicator: Blue<br />Product size: about 104 x 44 x 23 mm<br />Package size: about 210 x 140 x 30 mm<br />1 x USB 3.0 4 ports hub<br />In original package<br /><img src="http://img6.eachbuyer.com/x10/p10/ze33_1.jpg" />                                                        <img src="http://img6.eachbuyer.com/x10/p10/ze33_2.jpg" />                                                        <img src="http://img6.eachbuyer.com/x10/p10/ze33_3.jpg" />                                                        <img src="http://img6.eachbuyer.com/x10/p10/ze33_4.jpg" />