Switchcraft EHUSBBABX USB-B to USB-A Feedthru Panel Mount Jack, Black Finish The EH Series Connectors by Switchcraft is a complete line of Audio, Video and Data Connectors built into standard panel mount XLR housings. Custom Combinations can be loaded into any Switchcraft Q-G Panel or any panel or plate punched for standard XLR's Once mounted, connecting equipment to the back of the EH Series is fast and easy. Most EH Series are feedthru Proudly Made in the USA with a Lifetime Warranty.