The Siemens part number 6AV6381-2BF07-2AX0 refers to SIMATIC WinCC system software V7.2, RT 65536. Here's a breakdown of what it offers:

Runtime software supporting up to 65,536 PowerTags

Single license model

Delivered on DVD with a USB flash drive containing the license key

Supports 5 languages: German, English, French, Spanish, and Italian

Compatible with legacy operating systems like:

Windows XP Professional SP3 (32-bit)

Windows 7 (32/64-bit)

Windows Server 2003/2008 and Server 2008 R2

Classified as a Class A product (standard stock item)