OEM Not all devices with HDMI or VGA interfaces can use this cable; a converter may be necessary when connecting a laptop or PC to a television or display. For the two signal formats (VGA and HDMI) to communicate, both input and output devices must support signal conversion (encoding and decoding). Although HDMI-compatible cables support Hot Plug Detection, improper use can cause device resets or damage. Both input and output devices should be powered off when connecting or disconnecting the cable. This cable functions as a signal transmitter and is NOT a signal converter. Cable Adapter