The USB 3.0 multi-function AV converter can allow the user connect the two HD Display and multi USB Device and Audio equipment. It have expanded the pc function a lot and also it can be used only connect it with pc by the USB cable. The expanded part employs two USB3.0 Ports, which both can do power charge to the smart phone at the off mode. It can still do power charge to the mobile phone, MP3 and other similar device when the pc is at off mode. It supports the simultaneous output of the HDMI and VGA. Features Expand at AV include: One Microphone port and one headphone port (it can connect the Advanced Speaker). One HDMI output port and one VGA output port allows connect two HD Display that can support most up to 1920*1080 resolution. Support USB input for PC or notebook Support Video Output: HDMI Signal, VGA Signal (Support both routes of signal output simultaneously) Supply two USB3.0 Ports, it can connect the USB Keyboard , mouse or other Device with USB port. Support audio input and output, supply one Microphone port and one headphone audio port. Support Ethernet Connect function(Network Interface Card Function) Supported Function: 1.Primary 2.Extended 3.Mirror Compliant With USB 3.0,Compliant With USD 2.0 HDMI Output Resolution:Support480I,480P,576I ,576P,720P,1080I,and 1080p HDMI Output: support up to 1920*1080 resolution and same format as the input signal(fresh rate 60Hz 32 True Deep Color) Support Windows® Vista, Windows®7,and Windows® and Mac OS X HDMI and VGA output port support CRT, LCD, Projector and other display. No Loss of Signal Easy to Install Need DC5V/3A power adaptor