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: 1.DVI output, connect the DVI devices using a DVI cable. 2.HDMI output, connect the HDMI devices using a HDMI cable. 3.VGA output, connect the VGA devices using a VGA cable. 4.Mini Display Port, connect Mac Book, Mac Book Pro, or Mac Book Air. Features: 1.Support Mini Display Port 1.1a Dual-mode input. 2.The HDMI can support audio output for iMac (Late 2009) and Mac Book Pro (Mid 2010) 3.Support HDMI/DVI/VGA output with the max resolution of 1920x1080p@60Hz, 225MHz/2.25Gbps per channel (6.75Gbps all channel), 12bit per channel (36bit all channel) deep color. 4.Automatic detect the display by plugging and unplugging it. 5.Powered from Mini Display Port source. Specifications: Size: 6.0 x 6.0 x 1.5 cm Cable length: 18cm Input Signal: Mini Display Port 1.1a Output Video:HDMI/DVI/VGA Input: Mini Display Port Male 20pin Output: HDMI Female Type A 19pin Connector:DVI Female (24+1) VGA Female 15Pin Vertical Frequency Range: 50/60Hz Video Amplifier Bandwidth: 2.25Gbps/225MHz HDMI/DVI/VGA: 480i/480p,576p,720p,1080i/1080p External Power Supply: No external power needed Power consumption (Max): 700mW

• DVI output, connect the DVI devices using a DVI cable. 2.HDMI output, connect the HDMI devices using a HDMI cable. 3.VGA output, connect the VGA devices using a VGA cable. 4.Mini Display Port, connect Mac Book, Mac Book Pro, or Mac Book Air
• Support Mini Display Port 1.1a Dual-mode input. 2.The HDMI can support audio output for iMac (Late 2009) and Mac Book Pro (Mid 2010) 3.Support HDMI/DVI/VGA output with the max resolution of 1920x1080p@60Hz, 225MHz/2.25Gbps per channel (6.75Gbps all channel), 12bit per channel (36bit all channel) deep color
• Automatic detect the display by plugging and unplugging it. 5.Powered from Mini Display Port source. Specifications: Size: 6.0 x 6.0 x 1.5 cm
• Cable length: 18cm Input Signal: Mini Display Port 1.1a Output Video:HDMI/DVI/VGA Input: Mini Display Port Male 20pin Output: HDMI Female Type A 19pin Connector:DVI Female (24+1) VGA Female 15Pin
• Vertical Frequency Range: 50/60Hz Video Amplifier Bandwidth: 2.25Gbps/225MHz HDMI/DVI/VGA: 480i/480p,576p,720p,1080i/1080p External Power Supply: No external power needed Power consumption (Max): 700mw

DVI output, connect the DVI devices using a DVI cable. 2.HDMI output, connect the HDMI devices using a HDMI cable. 3.VGA output, connect the VGA devices using a VGA cable. 4.Mini Display Port, connect Mac Book, Mac Book Pro, or Mac Book AirSizet