Digital Watchdog - Blackjack Bolt NVR Powered by DW Spectrum IPVMS. 4 camera licenses pre-installed expandable to 16 cameras. Capable of managing 16 2.1mp 1080P Cameras at 30fps, 80 Mbps throughput, Slim Desktop form factor with True HD Output, Linux Ubuntu 64bit OS with cross platform support for Windows and MAC client software, Intel® Quad Core N3150 Processor, Dual Network Card, Onvif Profile S compliant, Graphic System Health Monitor for hardware performance, True Enterprise Scalability, Automatic Camera Detection, Local Client Display, Fully Customizable Layouts, Easy Drag and Drop Camera Management and Recording, E-Mapping, Advanced Motion Masking and Sensitivity Settings , One-time license charge, fully transferable, with no annual maintenance fees . Keyboard and Mouse Included. 8TB HDD Included.