The Siemens part number 6AV6381-2CB07-4AX0 refers to the SIMATIC WinCC RC Client V7.4 SP1—a runtime and configuration software package. 

Type: Runtime/configuration software

License: Floating license with USB key

Media: 2x DVD + 1x USB flash drive

Languages Supported: German, English, French, Spanish, Italian

Supported Operating Systems:

Windows 7 Professional/Enterprise/Ultimate + SP1 (32-bit & 64-bit)

Windows 8.1 Professional/Enterprise (32-bit & 64-bit)

Windows 10 Professional/Enterprise (64-bit)

Windows Server 2008 R2 + SP1, 2012 R2, 2016 (all 64-bit)

Product Class: A (standard stock item)

Net Weight: Approx. 0.212 kg

Packaging Dimensions: 18.40 x 26.80 x 3.20 cm

Lifecycle Status: Discontinued as of October 1, 2024, with no direct replacement