This is the BNC Male to SMA Female adapter. It features a BNC Male connector on one side. And a SMA Female connector on the other side. The adapter is made with a nickel-plated, metal construction for maximum signal strength and durability. The adapter will allow you to change an SMA cable into a BNC cable. The BNC Male to SMA Female adapter is a quick and easy solution for your cabling projects. For more information on our products, please contact our customer service department at 888-519-9505. For all your cable and connector needs, choose Show Me Cables.