The HRD-440 is a 4-channel 4M Analog HD DVR. Features AHD, TVI, CVI, CVBS DVR 4-channel, 4MP AHD 60fps/1080p 120fps recording, 64Mbps throughput, 2 internal HDD, 4-channel audio input/1-channel audio output, coaxial control, HDMI/VGA video output, 1 x spot monitor output, TVI and CVI max 2MP, iOS and Android.