IMPORTANT TIP: This RCA cable is not compatible with PC / laptop / PS4 / XBOX / DVD; before purchasing, please ensure that both devices have signal encoding and decoding function; for more information, please refer to the user manual of your device. HDMI is a digital signal and RCA is an analog signal, and the cable does not convert the signal. It is the devices themselves that need to convert the signal. Please ensure that both devices have signal encoding and decoding function. If the devices do not support encoding and decoding, please purchase an adapter separately. HDMI to 3RCA cable is used to transmit signal from a player to TV. It does not support converting signal from computer, DVD, PS3, set-top box to TV directly. It is also not possible to use the HDTV adapter to transmit this line to the TV. It acts as a signal transmitter, not a signal converter. This is an HDMI to RCA one-way transmission cable, RCA to HDMI cannot be used, which means the display device (TV or monitor) is the RCA end. HDMI to RCA cable for high-definition DVD players, HDTV receivers, TVs, projectors, A/V receivers and other HDMI-equipped devices.