WV-LINK 1080P HDMI to 3RCA CVBS AV Composite Video Adapter Converter for PC Laptop Xbox PS4 PS3 TV STB VHS VCR Camera DVD It is used for a new HDMI output only cable box with an older TV that only has composite (RCA) audio and video inputs. It is inexpensive and simple to use It only converts signals from a device with a high definition HDMI output (such as a DVD player, set-top cable box, game box, etc). to a device with standard (low) definition inputs (such as an older TV or amplifier with the three RCA input jacks, typically color coded yellow, red, and white). This is all it does It will not convert in the other direction, Additionally, not all HDMI jacks supply enough power to operate the device, so for positive results plan on using it with a USB power source. A USB cable is supplied for this purpose, but you must provide the USB charger as well as the HDMI input cable and RCA composite audio/video output cables Does NOT support 3D Supports NTSC and PAL two standard TV formats and Input HDMI Composite Video + Audio R/L What You Get: WV-LINK 1 x Video Adapter 1 x USB Cable 1 x Welcome Guide User Manual.18months warranty and friendly customer service