Aurum Cables XLR Male to 6.35mm (1/4) Inch Mono Male Adapter 3 Pack Aurum Cables Mono 6.35mm Male to XLR Male adapter. Convenient 3-pack XLR Male to 6.35mm (1/4 inch) Plug (Male) Adapter. This XLR Connector is designed to adapt an XLR Female to a Mono 1/4 input. High Quality, Sturdy, Metal Construction. Premium quality components for maximum power and signal transfer.