Mini Display port The adapter seamlessly connect Book, Book Pro, or Book Air with a Mini display port to high definition displaysThis product with three output ports, and you can choose one of them to use at a time as you demand, the functions of the port as followings: 1 DVI output, connect the DVI devices using a DVI cable 2 output, connect the devices using a cable 3 VGA output, connect the VGA devices using a VGA cable 4 Mini Display Port, connect Book, Book Pro, or Book Air Input Signal:Mini Display Port 1 1aOutput Video:/DVI/VGAInput: Mini Display Port Male 20pinOutput: Female Type A 19pinConnector:DVI Female (24+1) VGA Female 15PinVertical Frequency Range:50/60HzVideo Amplifier Bandwidth:2 25Gbps/225MHz/DVI/VGA:480i/480p,576p,720p,1080i/1080pExternal Power Supply:No external power neededPower consumption (Max):700mWcolour:BlackMaterial:ABSsize:Cable length 18CMPackage Contents:1 x converterOnly the above package content, other products are not included Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing The measurement allowed error is +/- 1-3cm