品牌cctv型号cctv线芯材质裸铜线芯数3+1护套材质PVC电线最大外径4.5（mm）主要用途摄像机延长产品认证CCC 我公司??生?摄像机延长200米线 ,?控?材，有意??系！！We are?supplier of high quality cctv / av extension cables.?We have 2x RCA connectors and one 2,1mm DC connector at each end. The cables must provide clean image with no interference and clean audio.??ranging from 20 to 50 meters long.。