TP-Link VIGI 64 Channel Network Video Recorder, 64 channels, 3840 x 2160 pixels, 16 channels, 720p, 1080p, 3840x2160/30Hz, 1920x1080/60Hz, 1680x1050/60Hz, 1440x900/60Hz, 1280x1024/60Hz, 1280x720/60Hz, G.711 A-law, G.711 μ-law, G.726