The AMPHENOL RF part 901-9511-1SF is an efficient and reliable RF Connector SMA Straight Crimp Plug. It is perfect for use with various cables including RG-142, RG-55B, RG-142B, RG-223, RG-400, and is designed specifically for 50 Ohm systems. With its high-quality construction, this connector ensures an excellent electrical connection for all your RF applications.