Check the listing for details. VBC CABLE ADAPTER - DC VOLTAGE BLOCKING COUPLER. Color: Silver, Condition: New. Listed at 9.99 USD. Description: This item is an Inline f-type VBC DC voltage Blocking Coupler/Adapter. Stops DC voltage from entering a device and protects sensitive equipment from damage. Also blocks DC Voltage from inline power inserters at any connection point in the coaxial wiring where needed. Works on satellite/cable and antenna systems. One end has a f-type male connector and the other end has a f-type female connector. Impedance is 75 ohms bandwidth is 5-1350 MHz These high-performance adapters have been developed to meet the stringent requirements of the industries customers. This Series line of selected adapters were designed to meet the highest standards and improve performance of CATV and HDTV Antenna Systems! thanks for shopping with us and have a great day! ( Quantities are Limited so Order Yours Today! )