The Siemens 6AV2107-2KF00-0BD0 is part of the SIMATIC WinCC WebNavigator for Runtime Professional series. It is a Powerpack that upgrades 3 clients to 10 clients in WinCC (TIA Portal) runtime software. This package is available as a single license, does not include software or documentation, and comes with a license key on a USB flash drive. This product has been discontinued.