About this item BNC to SMA cable - Connector 1: SMA Male; Connector 2: BNC Male; Cable Size: 7 x 6.9 x 0.7 inches. SMA to BNC patch cable - Impedance: 50 Ohm; Cable Type: RG58a/u coax cable; >1000 times mating life time. Adapter: 1pcs BNC Female to BNC Female Adapter, 1pcs SMA Female to SMA Female Adapter, 1pcs SMA Female to BNC Male Adapter, 1pcs SMA Female to BNC Female Adapter, 1pcs BNC Female to SMA Male Adapter. This RF Coaxial cable kit addresses all your SMA-BNC needs: Whether it's SMA male/Female to BNC Male/Female or SMA to SMA. By using the adapter, you can turn the product into any SMA-BNC cable you need. Size Description: 7 x 6.9 x 0.7 inches.