7-port USB 3.0 hub, multi-functional with DC IN power supply. - Number of ports: 7 ports - Connection type: USB 3.0 - Model name: A3H7 series - Power input: DC IN - USB port type: USB 3.0 IN Thank you for viewing. I bought it new but hardly used it, so I'm selling it. This type requires a power connection to function. It cost 6280 yen. http://orico-japan.com/a3h7-%e3%82%a2%e3%83%ab%e3%83%9f%e8%a3%bd-7%e3%83%9d%e3%83%bc%e3%83%88-%e3%83%8f%e3%83%96-12v2-5a-%e9%9b%bb%e6%ba%90-%e3%82%bb%e3%83%ab%e3%83%95%e3%83%91%e3%83%af%e3%83%bc-%e6%94%be%e7%86%b1%e6%80%a7/