Swann 8580 8ch 4K UHD NVR with 2TB SRNVR-88580H Monitor your home or business with the 8580 Series 8-Channel 4K UHD NVR with 2TB HDD from Swann. This NVR kit comes with a preinstalled 2TB HDD to store recorded video from the included bullet cameras. HDD storage is expandable to 6TB. With the HomeSafe View app, remote viewing can be accessed via iOS and Android devices, or a Windows or Mac computer. NVR Features RJ45 Ethernet with PoE technology HDMI and VGA video outputs H.264 and H.265 video compressions Remote viewing via the HomeSafe View app 3 x USB 2.0 ports Dropbox integration for uploading still images to the cloud Compatible with Windows, Mac OS, iOS, Android, Google Assistant, and Chromecast Compatible with the following Swann cameras models: SWNHD-855CAM NHD-855 5MP IP White Bullet Camera SWNHD-856CAM NHD-856 5MP IP White Bullet Camera SWNHD-865MSB 5MP IP True Detect White Bullet Camera w Audio SWNHD-866MSD 5MP IP True Detect White Dome Camera w Audio SWNHD-885MSB 4K IP True Detect White Bullet Camera w Audio SWNHD-886MSD 4K IP True Detect White Dome Camera w Audio SWNHD-876MSD 4K Upscale Dome IP Camera w Human Detection 1-way audio SWNHD-865MSFB 5MP IP True Detect White Bullet Camera w Audio and Spotlight/Siren SWNHD-885MSFB 4K IP True Detect White Bullet Camera w Audio and Spotlight/Siren SWNHD-887MSB 4K Bullet IP Camera w Face Recognition 1-way audio SWNHD-888MSD 4K Dome IP Camera w Face Recognition 1-way audio SWNHD-887MSFB 4K Bullet IP Camera w Face Recognition / Spotlights / 2-Way Audio SWNHD-875WLB 4K Upscale Bullet IP Camera / Sensor Warning Light / 1-way audio PLS make sure your cameras are compatible with the NVR before you place your order. You can call Swann tech support , 24/7 at 18006272799. You can also send us a message with your questions.