The Siemens 6AV6371-1DN07-2CD0 is the SIMATIC WinCC/DataMonitor V7.2 Power Pack, designed to upgrade from 25 to 50 clients. It is a single-license runtime software, and the license key is provided on a USB flash drive this product has been discontinued 

Product Name: SIMATIC WinCC/DataMonitor V7.2 Power Pack

Upgrade: From 25 to 50 clients

Software Type: Single-license runtime software

License Key: Provided on a USB flash drive

Product Lifecycle: Discontinued since October 1, 2021

Weight: 0.201 kg

Packaging Dimensions: 19.00 x 24.00 x 2.50 cm

Country of Origin: Germany

Compliance: RoHS directive compliant

WEEE Take-Back Obligation: Yes