Straight 50Ω Coax Adapter 4.3-10 Female to 4.3-10 Female 12GHz. Adapter Type: 4.3-10 Jack to 4.3-10 Jack. Contact Plating: Silver. Length: 39.3mm. Body Plating: White Bronze. Cable Type: Coaxial. Contact Material: Beryllium Copper (Center Contact), Brass (Outer Contact). MPN: 64K101-K00B1, Rosenberger