The HDMI to composite video converter accepts an HDMI signal and converts it to composite video (CVBS) with stereo audio this allows you to use modern equipment with older TVs that don't not have an HDMI input. In some cases extra power will be needed via the micro usb port which is provided by connecting the included USB Micro B cable. Specification Converts HDMI to composite video CVBS (yellow phono) Digital to Analogue Converter Chipset (DAC) Supports NTSC and PAL output Input: 1 x HDMI Output: 1 x Composite (yellow) and L/R audio (red/white) Output Resolution: PAL NTSC 480i 576i Impedance: 75ohms HDCP Compatible Power: DC5V Extra power can be applied via the micro USB socket Use with a 3x phono cable and scart adapter 3SR3-11 to make an HDMI to Scart Converter.