The UNV NVR304-32EP-B NVR has advanced ANR technology that enhances the reliability of the storage if the network were to be disconnected. This NVR offers a multitude of fisheye dewarping modes for live view and playback, which are suitable for both web interface and GUI. This NVR has two USB2.0 interfaces on the front panel and one USB3.0 interface on the rear panel. This product has up to 12 Megapixels resolution recording and supports a range of video formats, including Ultra 265, H.265 and H.264. Feel free to ask any questions by sending us an email or calling .