Mini DisplayPort to HDMI TV Monitor Adapter for Macbook Features a Mini DisplayPort connector and a female HDMI connector Compatible with Macs that use a Mini DisplayPort for video output Use with an HDMI cable (male to male) to connect to an external monitor or other display device with HDMI input jacks Cable Length: 13cm / 5" CAN TRANSMIT AUDIO DEPENDING ON MODEL / YEAR! MiniDisplayPorts prior to April 2010 do not transmit audio.