While searching for the best NVR systems, you will find that there is a different variation of the NVR system. The major NVR difference you will find in terms of capacity and video quality it supports. No unit is better than the others. It all depends on what want out of the system. How many cameras you will be using and how you will be accessing the videos. So before buying any NVR system consider your requirements and be sure of it. I have heard good reviews about Lorex NR8182. This surveillance system supports 4k recording. It supports real-time recording up to 8MP on all channels and comes with a straight forward installation process that doesn’t require a professional. The Lorex NR8182 is one of the few NVR systems that supports POE. If you specifically require power over the internet to connect the cameras, you can consider this system. Due to cloud security, it also the best NVR system for business.