The SRX-Pro Core NVR is a cost-effective network video recorder (NVR) that offers a built-in Power-over-Ethernet (PoE) switch able to support up to 16 IP cameras, eliminating the need, and therefore the cost, of an additional external switch. The U12 is a complete, robust NVR with Windows 10 IoT operating system. Up to two i3-approved hard drives can be ordered, with a total video storage capacity of up to 20TB.The U12 runs i3's Core version of the SRX-Pro software that combines practicality with performance.