The Siemens part number 6AV6613-1XA51-3CU8 refers to the WinCC flexible 2008 Runtime Update—specifically designed to upgrade from versions 2008, SP1, SP2, or SP3 to 2008 SP5.

1x DVD containing the update files (no license included).

Requires an existing valid license to function.

Compatible with Windows 7 (32/64-bit) and Windows 10 (64-bit) Professional/Enterprise editions.

Ideal for users maintaining legacy HMI systems who need to bring their runtime environment up to SP5.

This product has entered its phase-out stage as of October 1, 2022.