RFCX series Fiber Optic Rotary Adapters (FORAs) are uniquely designed to have identical cross sections and mounting features as their standard bulkhead adapter counterparts, sometimes also called mating sleeves. FORAs allows the fiber to rotate freely while maintaining uninterrupted transmission of the optical signal. The FORAs can be a pop-in replacement for FC bulkheads. Similar to MJX and R series, the RFCX Series FORJs contain fluid, which ensures condensation-free operation at extremely low temperatures. It is also ideal for high-humidity environments.

Similar to other single-channel FORJs, the RFCX model features low insertion loss and small loss variation during rotation (wow). Return loss can reach as high as >40 dB depending on the conditions of the mating connectors. Well-conditioned connectors can also result in typical losses of around 1 dB. They are rugged, sealed for dust and moisture, and can operate under temperature extremes (See insertion loss temperature cycling plot on the left).