This product is a portable digital-analog conversion line,defined through a standard HDMI input HD sources,you can convert HDMI video output to VGA.This cable adapter is designed to transfer HDMI singnal of those devices with HDMI interface,like Computer Laptop,HD-set-top-box,DVD,and Tablets,to VGA singnal and display it to a large screen devices,such as Monitors,LCDTV,Projectors. Feature Allows for a connection to VGA monitors and projectors supporting a maximum resolution. Connecting your new NoteBook, Laptop, HD DVD, HD DV without VGA interface to projector, Display, LCD, TV & Monitor in old model with VGA interface only for big screen viewing. Plug-in-out, extral power, power from HDMI connectting device. Convert the HDMI output port on your ENVY or Voodoo laptop to an analog VGA input with the HDMI to VGA conversion adapter. Supports full-size high-definition resolution of 720p or 1080p. Only transfer data form HDMI port to VGA port,opposite direction is not allowed Specification Input:HDMI Male Output:VGA male Supported Resolutions: 720p or 1080p Support analog video output up to UXGA and 1080p with 10-bit DAC Compressed audio such as DTS Digital, Dolby Digital (Includes: DTS-HD and Dolby True HD) Vertical Frequency Range: 50/60Hz HDCP Compliant: HDCP 1.2 Audio Support: No Package include 1080P HDMI Male to VGA male cable 1.8M