Specifications:
Powered from Mini Display Port source
Automatic detect the display by plugging and unplugging it
The HDMI can support audio output for iMac (Late 2009) and Mac Book Pro (Mid 2010)

Input Signal: Mini Display Port 1.1a
Output: 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
Cable Length: Approx.17.5cm
Size: 8.5 X 4.5 X 1.5cm

Notification:
You should assure that if your Mac has one of the following two kinds of port: mini DP port and Thunderbolt port

Package included: 1x Mini Display Port/DP to VGA/HDMI/DVI Adapter

• HDMI, DVI, VGA in One, Convenient to Use
• Support Mini Display Port 1.1a Dual-Mode Input
• Compatible with: Mac Book Air, Mac Book Pro, iMac, and Mac mini with Thunderbolt Ports Since 2011 are All Supported
• Compatible with: Mac Book Air, Mac Book Pro, iMac, and Mac mini or PC with Mini Display Port are Also Supported
• 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

HDMI, DVI, VGA in One, Convenient to UseESHOWEE