Connector A: 3-pin XLR Female; Connector B: 5-pin XLR Male. Simply plug it in and it will automatically convert the signal. 【Pin Wiring】: XLR 3-pin to XLR 5-pin converter cable plugs use pin-to-pin connections: 1-ground (shield), 2-hot (signal +), 3-cold (signal -), pins 4 and 5 are not connected.