6AV6351-1KB31-6AA0Brand: SiemensMPN: 6AV6351-1KB31-6AA0WinCC OA V3.16, for Nanobox 512 I/Os, runtime license for SIMATIC Nanobox (Win 7 Ultimate SP 164-bit) with max. 512 I/Os, including 1 UI, Dist option, S7 and S7Request a quote