XLR 3-pin Male to 1/4in Male Adapter XLR 3-pin Male to 1/4in is a great adapter for any avid musician, engineer, and A/V savvy person. This adapter will allow you to convert 3-pin XLR ports to any 1/4 in port. Item is great for converting microphones, and connecting them to various types of equipment. Made for durabilty through its compact design. Length: 3.25"