Mini DisplayPort V1.2 Version, backward compatible with DP V1.1, providing much faster transfer rate up to 5.4Gbps per lane to enable emerging dispaly applications DP V1.2 enables hight color range (supports Full HD 4K x 2K) over standard displayport connector,Macs made before 2010 are NOT able to output audio over Mini DisplayPort. More info and then check the Model Identifier field in Hardware Overview. Please be aware that with an OS X Mavericks update (10.9 and later) Apple disabled 4K output on the vast majority of prevous Mac models. For a list of 4K-compatible Mac systems, please google HT202856 Lightweight and portable adapter for connecting a Mini DisplayPort (Thunderbolt port) to HDMI, monitor or projector with HDMI/DVI/VGA cable,Note: Only supports 1 display output at a time, A separate HDMI/DVI/VGA cable is required, not included, Not compatible with Thunderbolt 3 (USB-C) ports