Brand – Dahua, Model – Dahua DHI-NVR1104HS-S3/H, Type – 04 Channel (NVR), Number of Input Channel – 04 Channel, Video Output (VGA) – 1, Video Output (HDMI) – 1, Video Recording Res. – 1920 x 1080, 1280 x 1024, 1280 x 720, 1024 x 768, Max. Video Recording Res. – 1920 x 1080, Audio Compression – Smart H.265+/Smart H.264+/H.265/H.264, Two way Audio – 1-channel input, 1-channel output, RCA, Decoding Capability – 4 channels @ 1080P (30 frames per second), self-adaptive, Network Protocols – HTTP, HTTPS, TCP/IP, IPv4, IPv6, RTSP, UDP, NTP, DHCP, DNS, P2P, Number HDD Interface (SATA) – 1 SATA, Max HDD Support (GB,TB) – Up to 8 TB, Wi-Fi – No, Wi-Fi Details – Not Applicable, Wi-Fi Coverage (Approximate) – Not Applicable, USB Port – 2 x USB 2.0, POE Interface – No, Main Processor – Industrial-grade embedded processor, OSD – Camera name, time, video signal loss, camera lock, motion detection, recording, Operating System – Built-in LINUX OS, Power Supply – DC12V, 1.5A, Approx. Power Consumption – Total output of NVR is 10W (without HDD), Color – Black, Dimension – 260 x 225 x 47.6mm, Weight (Kg) – 0.81 Kg, Supported Camera Models – ONVIF and RTSP, Feature – New user interface 4.0, P2P remote monitoring, mobile video playback, 4 channels @ 1080P (30 frames per second), self-adaptive decoding capability, ONVIF and RTSP main cameras support Smart H.265+/Smart H.264+/H .265/H.264, Simultaneous VGA/HDMI video output, maximum HDMI resolution – 1080P, Remote IPC configuration and management DHCP (Dynamic Host Configuration Protocol), HTTP (Hypertext Transfer Protocol), NTP (Network Time Protocol) and DDNS (Dynamic Domain Name System), Warranty – 2 Year (Without Adapter)