Choose an NVR by workload, not by series name
Use channel, throughput, decoding, storage and power limits together.
Updated
Principle and limits
An NVR channel count is only one limit. Check incoming recording bandwidth, outgoing client traffic, simultaneous decoding, supported streams, usable disk capacity and PoE power separately. A series label cannot substitute for these specifications. SharPcam series and generations may differ; select the exact model and its current datasheet before committing to a configuration.
Installation and acceptance
Make an acceptance row for continuous recording, peak activity, simultaneous playback and export, disk failure and restart. Verify the actual retained oldest footage after commissioning. Confirm RAID behavior, drive compatibility and licensing from model documentation rather than from Eco, Mainstream, Professional or Ultra branding.