Tonic Multi Port USB-A Hub The same size as a chocolate bar, this pocket-sized multi port hub opens up a new world of connectivity on your computer. As laptops get thinner and lighter, one of the first features to get dropped is connectivity. What happens if you want to plug in a mouse and keyboard or use your laptop to charge your phone? The Tonic Multi Port USB-A Hub expands the connectivity on your computer by adding four USB-A ports, which are ideal for plugging in a keyboard, mouse, flash drive, charging your phone or tablet, plus more. Incredibly light and designed for maximum portability, the four ports are compatible with USB 2.0 for charging and data transfers.