KPTEC Mini DisplayPort (Thunderbolt) to HDMI Adapter for Apple MacBook, MacBook Air, MacBook Pro, Surface Pro - White Mini DisplayPort to HDMI adapter is a compact audio/video connector that can seamlessly connect a high definition monitor, projector, or LCD that uses a HDMI connector to a Mini DisplayPort-based MacBook Pro, MacBook Air, iMac, Mac mini, Mac Pro or any other device with Mini DisplayPort. Full 1080p HD video. Full HD audio for the ultimate in surround sound. Compatible with Apple MacBook, MacBook Pro, or MacBook Air and other devices with Mini DisplayPort. Please Note: Not compatible with 2009 Early Macbook. With the adapter, your photos, your videos, your presentations, your games - view them all in HD on the big screen. The KPTEC thunderbolt to HDMI converter allows you to connecting a Mini DisplayPort compatible device to a HDTV, monitor, or projector; A separate HDMI cable is required. Supports PC resolutions up to 1920x1200 and HDTV resolutions up to 1080p. Plug and Play - no software or drivers required. Plug the Mini Display Port end into your laptop, and connect the HDMI end to an HDMI (Type-A) cable, then plug the cable into your HDMI input jack. Input: Mini Displayport (Thunderbolt) Male Output: HDMI Female Resolution: support 1920x1200 (1080p) Dimensions: 1.5 x 0.8 x 0.4 inches Cable Length: 4.7 inches Weight: 1.0 ounces The adapter is not a bi-directional adapter, it can only convert signal from mini displayPort to HDMI. Macbooks Pro/Air (before April 2010) with Mini DisplayPort that does not support audio out and will not transmit sound. 1x Mini DisplayPort to HDMI Adapter