64/128‑channel inputThird‑party IP cameras supported with ONVIF conformance: Profile S, Profile G, Profile C, Profile Q, Profile A, Profile TSupport 2‑ch HDMI, 1‑ch VGA, HDMI at up to 4K (3840x2160) resolutionHDMI1, HDMI2, and VGA independent outputs providedUp to 12 Megapixels resolution recordingRedundant power supply optionalSupport HDD hot swap with RAID 0, 1, 5, 6, 10, 50, 60 storage scheme configurableSupport 2 miniSAS InterfacesSupport 12V power outputANR technology to enhance the storage reliability when the network is disconnectedSupport cloud upgradeSupport N+1 Hot spare SKU: ES.UNV.NVR516-128 Brand: UNIVIEW Family: NVR Camera Size: 4K Supplier Part Number: NVR516-128