This is a 8in USB 3.1 (C) male to USB 3.1 (C), HDMI (4K), 2xUSB 2.0 (A), USB 3.0 (A), SD, TransFlash, Audio docking station. It allows your USB 3.1 (C) equipped MacBook®, laptop or PC to connect to any USB 3.1 (C), HDMI (4K), 2xUSB 2.0 (A), USB 3.0 (A), SD, TransFlash, Audio equipped device, such as a monitor or projector. This also allows for high definition viewing on any HD capable device that is equipped with an appropriate port. Our video adapters are backed by a 3 year warranty and are guaranteed to work the first time. | 
