The Siemens part number 6AV6381-2CA07-3AK3 refers to a SIMATIC WinCC RT Client upgrade from V7.X to V7.3, specifically for RT Clients without RT 128. It’s a runtime software package with a single floating license, delivered as a digital download only—no physical media.

License Type: Single license (floating)

Delivery: Software and license key download (email address required)

Languages: German, English, French, Spanish, Italian

Supported OS:

Windows 7 (32-bit & 64-bit)

Net Weight: Approx. 0.001 kg

Country of Origin: Germany

Lifecycle Status: Discontinued as of October 1, 2019