The STARTECH HB31CM1A3CB is a 4-port USB-C expansion hub designed for laptops, providing additional connectivity options. This hub converts a single USB-C port into multiple USB connections, specifically three USB-C ports and one USB-A port. It supports USB 3.2 Gen 1 (10Gbps) data transfer speeds, suitable for connecting various peripherals such as external drives, input devices, or other USB-C accessories. The unit is USB bus-powered, drawing up to 15W total power directly from the host laptop, eliminating the need for an external power adapter.