StarTech 7-Port Compact USB 2.0 Hub
The black 7-Port Compact USB 2.0 Hub from StarTech connects to one USB 2.0 port on a Mac or PC computer, which further adds seven USB 2.0 ports, allowing you to maximize the number of high-speed USB peripherals connected to your computer. The hub supports cascaded installation with other USB 2.0 hubs, supporting up to 127 USB 2.0 device connections, which provides a scalable solution for connecting multiple USB devices to a single host computer.
A power adapter is included, but but the hub can also be powered through a USB bus connection to the host computer, thus it allowing you to install the hub as needed without worrying about the availability of a power outlet.