Aurum Cables XLR Female to 6.35mm (1/4) Inch Male Mono Adapter 5 Pack Aurum Cables 6.35mm Male Mono to XLR female adapter. Convenient 5-pack XLR Female to 6.35mm (1/4 inch) Plug (Male) Adapter. This XLR Connector is designed to adapt an XLR Male to a Mono 1/4 input. High Quality, Sturdy, Metal Construction. Premium quality components for maximum power and signal transfer.