24” 3.5mm TRS Right Angle to (2) XLR-3 Male, Unbalanced, for Sound Devices Tape Out [X3/X4 on 633], Tip = L, Ring = R, for 633, 664, 688, 552 etc.Sound Devices “Tape Out” Cables - Designed for the various Unbalanced Tape Out connections on Sound Devices mixers. Many variations available with 3.5mm TRS or TA3F to XLR- 3M connectors or TA5F to feed one or two Lectrosonics transmitters. 633 = X3/X4 via 3.5mm TRS, 644 = Tape Out via either TA3F or 3.5mm TRS, 688 = Tape Out via 3.5mm TRS, 552 = Tape Out via either TA3F or 3.5mm TRS, 302 = Tape Out via TA3F, MixPre-D = Tape Out via TA3F.