The Middle Atlantic UNIV4 is a UCP Module with four punchout that fits in UCP Series frame kits. It will fit Neutrik FP, MP, MDL, and FDL connectors, small SpeakON connectors, Switchcraft female XLR connectors, Cannon connectors, and Whirlwind connectors (male XLRs fit as well, but leave a small gap on sides). It's made of aluminum construction with a black brushed and anodized finish.