Tripp Lite D10B2 Network Dataline Surge Protector/Suppressor 10Base-2 Thin Coax M/F BNC Jacks (Discontinued by Manufacturer) Complete dataline (BNC coaxial) surge protection Protects against the effects of electrostatic discharge, faulty wiring and lightning Lifetime product warranty Heavy duty grounding lead 6 inch heavy gauge grounding lead connects to designated grounding lugs on protected equipment