2x BNC Cable Extension Female to Female Connector Adapter Coupler
2x BNC Cable Extension Female to Female Connector Adapter Coupler for CCTV Camera Allows you to extend the lengths of power security surveillance BNC cable for CCTV DVR These couplers have female BNC jacks on both ends, and are constructed of nickel-plated brass with gold plated contacts. They can be used to join two male BNC plugs, or as gender changers.