... output CCTV power supply,for 9 channels cctv,current for each channel 500mA,9 individual fuse,over current 9 groups output CCTV power supply ... :Funtion:for 9 channels CCTV, current for each channel 500mA - Self ... over cuurent - including: one power supply,two keys of the power supply box, one pc of manual 9 groups output CCTV power supply