Laird TRI-1857A-7 Belden 1857A RG59/U Stranded Triax Male to Female Cable - 7 Foot Belden 1857A RG59/U Type Video Triax Cable with Canare CCF4-JK Female to  CCM4-PK Male Tri-Kpro connectors. Stranded 22 AWG Stranded Center  Conductor.