Dahua 4-channel 12 MP, 1U NVR, 1ch-12MP, 2ch-5MP, 3ch-4MP, 30fps, H.265/H.264, 1xSATA up to 20TB, 2xUSB, 1xVGA, 1xHDMI, 1xAudio, support two-way talk, Web, Local GUI, DC12V, 1.5A, 10W, w/o HDD.