The combination that remote sites need: PoE for the cameras and a managed firmware for the network. Power, VLANs, per-port reboot and monitoring arrive in one chassis instead of a PoE injector stack plus a separate managed switch.
Per-port on/off and scheduling, power budget alarms and remote reboot. When a camera hangs at 2 a.m., switching its port off and on from a browser beats sending an engineer to the site.
Keep cameras off the office network and push the run back to the control room over single-mode fibre; SFP uplinks and redundant power options cover cabinets that cannot be visited easily.
Typical builds: RS1008K-P8-2S-M for eight PoE ports with fibre uplink, RS1024K-P24-2S-M for 24-port camera groups under central management.