Check the listing for details. BNC Connector DVR 8CH CCTV Video Surge Protector Lightning Protection Arrester. Condition: New. Listed at 77.50 USD. Document Features The surge protector device designs according to the national standard of GB/T18802.21-2004/IEC61643-21:2000 Applicable for Video, coaxial cable protection, special for the CCTV system, DVR device, Video switches over-Voltage, over-Currency, electrostatic discharge damaged The device possesses the futures as follows: Multi-level over-voltage protection, integrate function, width capacity, low limit-voltage. fast response, low insertion loss, high speed etc. Specification Model SYL01-V408A Nominal working voltage Un 5V Relative humidity ≤ 95% Atmospheric pressure 70kPa~106kPa Max continuous operation voltage Uc 6V Nominal discharge current In (8/20μs) 5KA Max discharge current Imax (8/20μs) 10KA Protection level Up (10/700μs)