Type BU-5050 has BNC male connectors at both ends. Type BU-5454 has BNC male connectors with strain reliefs on both ends. Type BU-5656 features fully insulated BNC male connectors on both ends. Type BU-5659 is a BNC male-female coaxial cable. Type BU-5070 is a BNC to Banana cable assembly. Type BU-7070 has dual banana plugs 0.75" OC on coax. Type BU-7171 features shielded dual banana (0.75" OC). Type BU-5671 combines the insulated versions of both the BNC Male and double banana into the same assembly. All on RG-58 (50 Ω) cable. Stackable double banana plugs.