IR receiver USB DVR PCB Board Assembly

IR receiver USB DVR PCB Board Assembly Interface specifications 1, LED 2, IR receiver 3, SATA power 4, USB 5, video output 6, Expansion board 7, 5 V power output 8, network 9, external GPS 10, User IO interface, RS485, RS232 11, video and audio input, power output 12, power input 13, SATA 14, electronic lock Expansion board interface: Positive: 1. Expansion board 2. 3G module 3. wifi module Obverse 1. BDS/GPS dual module 2. GPS module 3. SIM Slot Features: Special function: