VIKYLIN Poe NVR up to 8MP/4K Resolution@30fps real-time, fully load 8 channels of 8MP, 8-channel 4K HD pixel recording, previews or playback 1 channel of 8MP/1 channel of 6MP/1 channel of 5MP/2 channels of 4MP/8 channels of D1. HDMI port supports up to 4K@30fps output, and VGA port supports 1080P@30fps output. Note: this Poe NVR is more compatible with VIKYLIN YC series cameras realize two-way audio function, search B0CL8Z4GRG or B0BKGCSH4X on Amazon, you will get it. 8 channel Poe NVR supports resolution at 8MP/6MP/5MP/4MP/3MP/1080P/960P/720P/D1/2CIF/CIF Poe IP camera. Limited supports third-party cameras, you need manually search them to add by onvif protocol. This NVR Built-in 8 PoE Ports, can data transmission and power on 8 PoE cameras at the same time. Poe Cameras can record videos with sound 24x7, then transmit HD recordings to VIKYLIN Poe network video recorders. This NVR has no pre-installed hard disk, extra up to 8TB HDD can be added via the SATA port. 2 USB 2.0 ports for video data backup. Poe NVRs can integrate human/vehicle detection & playback from IP cams to build an intelligent system. By adding more VIKYLIN cameras with optical zoom, auto-tracking, two-way talk, and full-color night vision features, you can even build a cutting-edge home security system on your own. Supports H.265, H.264 encoding and decoding. Easy Remote Access & No Monthly fee, free APP "Guard Viewer" can be downloaded from App Store or Google Play. At anytime anywhere, we can view the live video remotely/local via phone APP or software "Guard Viewer" on PC/Mac/Tablet. We value the security of our customers' data. 1-year warranty and lifetime technical support. 4K 8-Channel PoE Network Video Recorder NVR