Experience unparalleled video quality and ease of use with the Ultra HD NVR Surveillance System. This complete, plug and play system features a 16 channel NVR, a 3TB surveillance grade hard drive, and eight four megapixel HD indoor/outdoor bullet cameras. Utilizing state of the art H.265 compression and offering 4K video output, the Ultra NVR delivers exceptional performance. The cameras boast optical grade, IR anti reflection glass, and massive four megapixel sensors, providing double the resolution of standard 1080p. Equipped with Smart commercial grade OSRAM LEDs, these cameras illuminate scenes up to 100 feet in total darkness, ensuring unmatched night vision quality. Built for outdoor durability, the cameras withstand temperatures from -31F to 140F.