This Usb-c 7-port Hub turns a single Usb port into seven Usb Type-a ports and features a compact design so you can easily fit it into your bag/case when travelling. It s perfect for connecting Usb devices such as a mouse, keyboard, or flash drive whenever you need them. The JCH377 comes with an external power adapter to support power-hungry Usb devices such as external hard drives and enclosures.