Feature:The product has three output ports, you can choose to use one of them at a time according to your needs. The functions of this port are as follows:DVI output, use DVI cable to connect DVI equipment.HDMI output, use HDMI cable to connect HDMI device.VGA output, use VGA cable to connect VGA device.Mini display port, connect to Mac Book, Mac Book Pro or Mac Book Air.Support Mini Display Port 1.1a dual mode input.HDMI can support the audio output of iMac (late 2009) and Mac Book Pro (mid 2010)Support HDMI / DVI / VGA output, the maximum resolution is 1920x1080p60Hz, 225MHz / 2.25Gbps per channel (6.75Gbps per channel), 12bit per channel (36bit per channel) deep color.The display is automatically detected by plugging and unplugging it.How to use it:The product is easy to use and has three output ports: DVI VGA HDMI and a mini display port. Moreover, you can use one of them at a time, when you want to use DVI output, just connect the DVI device with a DVI cable. Moreover, when you want to use HDMI output, you only need to use an HDMI cable to connect the HDMI device. When you want to use VGA output, you only need to use VGA cable to connect VGA device. Mini Display Port interface is used to connect Mac Book, Mac Book Pro or Mac Book Air.