CP Plus CP-UNR-4K2161-V2 is a 16-channel Network Video Recorder (NVR) supporting up to 8MP resolution and H.265+ decoding. srgroup.net.in
Limited Storage Expansion: With only one SATA slot, you are capped at 6TB, which is low for a 16-channel 4K system. cpunr4k2161v2 firmware download link
Conclusion
Firmware updates for CP Plus devices are generally hosted on the manufacturer's official portal. Because firmware is often version-specific to the hardware's manufacturing date, it is recommended to use the official CP Plus Support & Downloads page to ensure compatibility. Official Support Site CP Plus World CP Plus CP-UNR-4K2161-V2 is a 16-channel Network Video