SCT-EFEF-UB-PM4 is a 1.35 mm female to 1.35 mm female coaxial adapter with a 4 hole panel mount that covers the frequency range of DC to 90 GHz. This coaxial adapter offers efficient transitioning between the coaxial connectors with a high return loss and typical insertion loss of 0.7 dB. The impedance of the adapter is 50 Ohms. Other configurations are available under different model numbers.