| Product Overview | Free entry-level VMS for basic surveillance needs | Cost-effective solution for small and mid-size business | Designed for mid-size to large-scale projects requiring central management and 24/7 operations | 
                
                  | Maximum Number of Cameras per system | 32-ch | 256-ch | 22400-ch | 
                
                  | Maximum Number of Substations | 0 | 64 (ND/NV Series NVR) | 700 (ND/NV/NR Series NVR,VSS Pro) | 
                
                  | Maximum Number of Cameras per server | 32-ch | 256-ch | 320-ch |