I use this encoder to four existing analog surveillance cameras (each with 520-720 TVLs) to connect to a Synology DS 412+ NAS. The entire installation was done in 10 minutes. The encoder was hanged instead of the old analogue disk recorder via BNC to the camera and into the existing network. Facility in the web frontend of Grand streams and within the Synology Surveillance Station was a breeze. The encoder is suitable mE also to build a cost-effective monitoring solution with an SD card or a big USB stick as a recording medium. Power consumption is very low, device is powered by a 12V 1.5A power supply.