The Sony SNTEX154 4-Channel Full-Function Blade Encoder compresses audio and video signals from 4 analog surveillance cameras into digital data for transmission over the network. This standalone encoder is ideal when you need to leverage and migrate from an existing analog system to an IP-based monitoring system. Furthermore, this blade encoder can be used with SNT-RS1U (1U Rack Station up to 4 Blade Encoders - 16 channels) and SNT-RS3U (3U Rack Station up to 12 Blade Encoders - 48 channels) video network stations.The encoder comes with a host of advanced imaging features such as Visibility Enhancer, Dynamic Noise Reduction, and Dynamic Frame Integration, which help in enhancing the quality of images and videos obtained even under low-light conditions.This encoder supports H.264, MPEG-4, and JPEG video compression formats, which reduce the video file size without compromising on image quality. Furthermore, the dual stream capability of this encoder allows you to view the live recordings of 2 different places simultaneously on the monitor. Compatible PTZ cameras can be controlled via the RS-485 port.