High resolution H.264,SD card Max.32GB * 2pcs,Compact size and easy installation

Video input:4ch video input 1.0V,p-p,75Ohm

Video output:1ch output 1.0V,p-p,75Ohm

Video frequency demonstration:Single picture/four picture demonstration

Audio infut:4ch audio frequency inputs

Image form:CIF/HD1/D1 may choose

Audio frequency class standard:ADPCM

Date Storage:8kb/s

Serial interface:Supports 1 RS232 connection,refers to the DB44standard;Supports 1 RS485 connection,refers to the DB44stsndard.