Black Finish Surface Box & Plate. Fitted with 3 Pin XLR Connector. Available with Male or Female XLRDimensions: 86 x 86 x 45mm. Single gang XLR plate and surface box complete with either male or female Neutrik XLR 3 pin connectors. These surface connector boxes are ideal for schools or public building where remote microphone connection into a mixer or audio system is required.. xlr plate-microphone connector plate