Dual HDMI adapter capable of 4K output via USB 3.1 connection. - Model: USB-HDMI x 2 Display Adapter - Resolution: 4K compatible - Connection Type: USB 3.1 - Included: Driver installation CD, Instruction manual Thank you for viewing. I am no longer using this as I have switched to a wireless setup. Please refer to the manufacturer's website for details about the product, using the model number. I would like to pass this on to someone who can use it. Please consider. Thank you.