<b>Description:</b><br> <br> This 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:<br> 1.DVI output, connect the DVI devices using a DVI cable.<br> 2.HDMI output, connect the HDMI devices using a HDMI cable.<br> 3.VGA output, connect the VGA devices using a VGA cable.<br> 4.Mini Display Port, connect Mac Book, Mac Book Pro, or Mac Book Air.<br> <br> <b>Specification:</b><br> <br> Input Signal:Mini Display Port 1.1a<br> Output Video:HDMI/DVI/VGA<br> Input: Mini Display Port Male 20pin<br> Output: HDMI Female Type A 19pin<br> Connector:DVI Female (24+1) VGA Female 15Pin<br> Vertical Frequency Range:50/60Hz<br> Video Amplifier Bandwidth:2.25Gbps/225MHz HDMI/DVI/VGA:480i/480p,576p,720p,1080i/1080p<br> External Power Supply:No external power needed<br> Power consumption (Max):700mW<br> <br> <b>Compatible modes:</b><br> <br> Mac Book Air, Mac Book Pro, iMac, and Mac mini with thunderbolt ports since 2011 are all supported.<br> Mac Book Air, Mac Book Pro, iMac, and Mac mini or PC with mini display port are also supported.<br> <br> <b>How to use:</b><br> You can only plug a port among 3 output ports at one time, when you want to use the DVI output, you just need to connect the DVI devices with a DVI cable. And when you want to use the HDMI output, you just need to connect the HDMI devices with a HDMI cable. When you want to use the VGA output, you just need yo connect the VGA devices with a VGA cable.<br> <br> <b>Note:</b><br> You should assure that if your Mac has one of the following two kinds of port : mini Display port<br> <br> <b>Packing Contents:</b><br> 1 x Deconn Mini Display Port Thunderbolt to DVI VGA HDMI Adapter cable<br> <br> <b>Warranty Policy:</b><br> 45 days money-back and 18-month, worry-free Guarantee!