If you are looking for a suitable hub for your laptop， here is a great one can meet your demand. This 7 Ports 3A Battery USB 3.0 Long Hub for Computer is used for the expansion of the computer. It has seven USB ports， convenient the connection between USB products and the laptop. With professional and delicate design， it will give you reliable and stable performance. Besides， it is plug and play with hot swapping support， functional and convenient to use. Altogether， buying this reliable hub to let your precious laptop be in good work condition!                                    Features             USB hub with 7-port <br> Friendly and ergonomic design<br> Fully compatible with the universal serial<br> Perfect for connecting USB such as USB mice， USB printer， USB scanner， USB Portable <br> Plug &amp; play and hot swapping support<br> With 3A battery power supply<br>                                                            Specifications             Color     Black    <br> Model     ALF-H3070    <br> interface     USB3.0/2.0    <br> Data Transfer     480Mbps(USB2.0)，5Gbps(USB3.0)    <br> Material     Plastic    <br> Operating Environment     0~50℃    <br> LED Indication     Power LED(Red)，Working LED(Blue)    <br> Safety Approval     CE and FCC and ROHS Approval    <br> Port Number     7    <br> Dimensions     6.81 x 2.36 x 0.91" / 17.3 x 6 x 2.3cm    <br> Weight     14.25 oz / 404 g    <br> System     Windows 98/ME/2000/XP/Vista/7/8，Mac OS 9.1 or above，Linux 3.0 or above     <br>                                                             Package Includes            1 x USB 3.0 Hub<br>1 x USB Cable<br>1 x AC/DC Adapter<br>