GW7035MIC16-4T is our reliable 16-Channel Security Camera System with unmatched video quality, perfect for any home and business with the need to protect valuable possessions. This ultimate HD security-package comes with 16 8MP IP Bullet cameras, an NVR with a built-in 4TB security-grade hard drive that can store up to 400-hours of video surveillance and can also be upgraded to an astronomical 20TB hard drive capacity for even more-hours. 4K video has 400% more pixels per frame than standard 1080P (2MP) HD. 8 megapixels boast 3840 x 2160 resolution, additional pixels make the digital zoom more effective, providing more details at close distances or the ability to digitally zoom in on details at a greater distance than before. Our high performance system uses H.265 compression, H.265 is faster, consumes 50% less data allowing you to store more video to your NVR while also preserving and improving upon superior video quality. The Power over Ethernet setup is clean and simple with a single network cable, built-in P2P service and support of ONVIF protocol. 100% True Plug-and-Play - An additional built-in network interface provides a unique IP address to each security camera, eliminating the hassle of messy IP security camera configurations.