FEATURES: Converts BNC based test instruments to double binding posts with banana jacks. Binding Posts can be vertically and horizontally stacked for test versatility. Wires, spade lugs, pin tip plugs and banana plugs can be attached by means of the insulated knurled thumb knob. Insulated thumb knob is captive to prevent misplacement. BNC features Nickel Plated, Beryllium Copper for tarnish resistance & long insertion life. BNC center contact is Gold Plated, Brass for low contact resistance BNC shell is plated for tarnish resistance. MATERIALS: BNC (Male): Body: Brass, Nickel Plated Dielectric: PTFE Center Contact: Brass, Gold Plated Impedance: 50 Ohms Insulation: ABS Molded to BNC (Male) and Binding Post Bodies, Color: Black Binding Post: Body - Brass, Nickel Plated Insulated Thumb Knob - Polycarbonate, Color: One Black, One Red RATINGS: Voltage: Hand-held testing: 30VAC/60VDC Max. Hands free testing in controlled voltage environments: 500 VRMS Max. Operating Temperature: +50°C (+122°F) Max