This is a single RCA to twin RCA (left and right) interconnect cable. It is 12 feet long and was previously used on a subwoofer that had dual RCA (stereo) input. Cable can also be used to bi-amp if your preamp only has one pair of preouts and you want to hook up to two stereo amps. Of course you would need to get another pair to fully enjoy it in stereo. Cable is in great shape and will be securely packed for safe shipping.