The Siemens 6AV2104-2DF00-0BD0 is SIMATIC WinCC Runtime Advanced Powerpack 512 PowerTags  2048 PowerTags, a runtime software in the TIA Portal. Here are its details:

License Type: Single License

Supported Versions: V11 to V17 (without version change)

Functionality: Expands the number of PowerTags from 512 to 2048

Delivery: License key on USB flash drive (no software or documentation included)

Product Lifecycle: Active product

Compliance: RoHS directive compliant

Country of Origin: Germany