SJ-01A has a flexible mini coaxial cable lead to transmitt CCTV video signal Advantages: 1.Transmission distance of color signal via CAT5 or CAT6 Upto 300m (1000 ft) with passive balun Upto 800m (2667ft) with active receiver 2.Features: *PAL, NTSC, SECOM All-systems compatible *Two screw terminals for UTP cable *Male BNC with 17.5cm pigtail *Built-in transient protection *Eliminates costly and bulky coaxial cable Our products are strictly abide by ISO9001 and are 'CE, UL, FCC, MA, and ROHS' certified.