UG-492D/U is a 50O BNC RF connector adapter from Amphenol RF, designed for quick connect/disconnect applications using bayonet coupling. It features a frequency range of DC to 4 GHz (usable to 11 GHz), with a VSWR of 1.3 max at DC-4 GHz for straight configurations. The connector offers low insertion loss of 0.2 dB max at 3 GHz, RF-leakage of 55 dB minimum at 3 GHz, and operates over a temperature range of -65°C to +165°C. With 2-stud bayonet lock coupling per MIL-STD-348 and durability rated for 500 mating cycles minimum, this BNC adapter is ideal for instrumentation, broadcast, oscilloscopes, computers/LANs, medical equipment, and satellite communications applications.