XLR Male to RCA Male S/PDIF 18" Adapter Cable. This Lynx Studio Technology CBL-XMDR18 RCA Male to 3-Pin XLR Male Cable is a cable for Digital In to S/PDIF. Included with the LynxTWO and L22 sound cards (requires two for stereo). Lynx cables are custom made to Lynx specifications using professional-quality shielded cable and gold-plated connectors. Their low-noise design makes them a perfect accessory for the Aurora, as well as the LynxONE, Lynx L22, LynxTWO or AES16 digital audio cards .