SM4941 is an SMA female to SMA female 4-hole flange adapter designed for RF and microwave applications requiring panel or rack mount configurations. The adapter operates across a frequency range from DC to 18 GHz with a maximum VSWR of 1.2:1, ensuring excellent signal integrity and minimal reflections. Both connectors feature gold-plated beryllium copper contacts with PTFE insulation and passivated stainless steel outer contacts, meeting MIL-STD-348 interface specifications and MIL-G-45204 plating standards. The adapter is rated for 500 mating cycles per connector and operates reliably over a temperature range of -55°C to +100°C. SM4941 is commonly used in general-purpose test equipment, rack-mounted systems, and applications where external panel connections are required, offering excellent protection for expensive RF equipment through its connector-saver design.