Portable, hybrid fiber to ST breakout box. Each hybrid connector breaks out to two ST female connectors on a recessed, protective metal top plate. All optical components feature machine polished ceramic ferules and ceramic sleeves for superior optical alignment and low loss, while the chassis is constructed from heavy gage anodized aluminum. In addition to the standard configuration, the HBB breakout box is also available with XLR connectors that are hard wired to the signal components of the Lemo hybrid connectors.