This Certified Refurbished product is tested and certified to look and work like new. The refurbished process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships with all relevant accessories, a 1 year warranty, and may arrive in a generic box. Only select sellers who maintain high performance bar may offer Certified Refurbished products on Amazon.com | Amcrest’s NV4108E-HS 8CH POE NVR supports hard drives up to 6 Terabytes while Featuring 8CH Recording, Playback & Live View in Up to 8MP/4K Resolution @ Real-Time 30fps. Supports all Amcrest WiFi and Wired IP cameras and limited compatibility with third-party brand compliant IP cameras | Advanced H.265 compression technology lets you save on storage space which allows for longer recording times. H.265 technology compresses your video without sacrificing any of the UltraHD video quality. Intelligent search, playback, and backup functions provide enhanced ease of use and security (for example, motion detection event and exact search functions that are accurate to one second). | Max 80Mbps Incoming Bandwidth, records 8 cameras @ 4K using H.264. Records 7 cameras @ 4K by changing default settings from H.264 to H.265 and adjusting bit rate to 1792 on each camera for maximum optimization. Conveniently packaged with extras such as USB mouse, network cable, and quick start guide. | Plug & Play setup, Easy to configure, access and control. Scan QR Code on PoE NVR from the "Amcrest View" app to instantly access live viewing and playback. Connects to and manages all the POE IP cameras on your network directly through their ethernet cables for ultimate ease and convenience in a home security system.