The 2921-61689 from SV Microwave is a Black Chrome SMA Connector that operates from DC to 18 GHz. It has a non-reflective black chrome finish and is ideal for military, aerospace, field communications equipment, and panel mounting applications. This straight female (Jack) connector solution is compatible with a flexible coaxial cable. It is matched to 50-ohms, has a threaded coupling mechanism, and is available in a bulkhead mount package that measures 0.708 (L) x 0.495 (Dia.) inches. The 2921-61689 is manufactured using stainless steel with a black chrome finish.