The ECF504-12BBS is a 12-inch USB type B female shielded panel mount coupler to USB type B male Connector. Another unique panel mount USB option features a bulkhead type B jack to a molded type B plug attached via USB 2.0 compliant cable. This cable can be directly connected to a mating connector inside an enclosure. This Assembly is fully shielded and use L-com's popular ECF504 style housing that can be used with virtually any panel thickness. Twisted pair data lines help reduce crosstalk while 20AWG power conductors enable maximum power transfer from host to peripheral.