1 x 7 port HUB unit. No power supply included, however it is not needed, unless you have greater than25' cables, or you are using more than 2 x USB 3.0 to HDMI adapters.This Anker 7-Port USB 3.0 Desktop Hub H7928-U3 is the perfect solution for those seeking a high-quality, reliable USB hub. With a connection split/duplication of 1:2, this hub is compatible with a range of models, including H7928-U3 and 7 port. The driver is not required, and it supports a range of operating systems, including Windows XP, Vista, 7, 8, 8.1, 10, Mac OS and Linux. Featuring a USB 3.0 connector A, this adapter/converter also boasts powered features and an output voltage of 12V. It is the ideal choice for those looking to connect multiple devices to their computer or laptop. This Anker 7-Port USB 3.0 Desktop Hub H7928-U3 is a must-have for anyone seeking a high-quality, reliable USB hub.