Recorders Redorders NVR-414K-I digital recorder I / O stream 40 / 80Mbps Number of remote connections 128 IP channels 4 Supported IP resolution 8Mpx Compression H.265 / H.264 / H.264 + Number of HDD 1 Sata III 6TB Network card 10 / 100Mbps Intercom function Yes Monitor output SPOT HDMI (4K-3840 × 2160), VGA (1920 × 1080) NVR-41EP4 digital recorder I / O stream 40 / 40Mbps Number of remote connections 64 IP channels 4 Compression H.264/H.264+ Number of HDD 1 Sata III 6TB Network card 10 / 100Mbps Intercom function Yes Monitor output HDMI (1920 × 1080), VGA (1920 × 1080) NVR-814K-I digital recorder I / O stream 80/160Mbps Number of remote connections 128 IP channels 8 Supported IP resolution 8Mpx Compression H.265/H.265+/H.264/H.264+/MPEG4 Number of HDD 1 Sata III 6TB Network card 1000Mbps Intercom function Yes Monitor output SPOT HDMI (4K-3840 × 2160), VGA (1920 × 1080) NVR-81EP8 digital recorder I / O stream80/80MbpsNumber of remote connections64IP channels8Supported IP resolution4MpxCompressionH.264/H.264+Number of HDD1 Sata III 6TBNetwork card10/100MbpsIntercom functionYesMonitor outputHDMI (1902 × 1080), VGA (1920 × 1080)