The Siemens catalog number 6ES7810-4CC12-0KE5 refers to an upgrade package for the SIMATIC S7 STEP7 V5.7 SP1 engineering software. This upgrade is designed as a floating license for one user, allowing flexible access within a networked environment. The software comes with both the installation files and documentation provided on DVD, while the license key is conveniently stored on a USB flash drive. It supports two languages, English and Chinese, and is compatible with Windows Server versions 2016, 2019, and 2022, as well as Windows 10 and 11 Professional editions. This product is available through BSP Automation, offering reliable access to essential programming tools for automation projects.