Prepar3d V4 Professional Plus 402321468 ((link)) -

You specifically mentioned the edition. Here is what you get over the Standard Academic/Professional license:

(Version 4.x) is the most advanced tier of Lockheed Martin's flight simulation platform, specifically designed for military training and high-level commercial applications. Unlike the standard Professional or Academic versions, the Professional Plus license includes advanced features for combat rehearsing, weapon systems, and multi-system integration. Core Version 4 Features prepar3d v4 professional plus 402321468

To run v4 effectively, your system must meet these specifications: System Requirements - Prepar3D You specifically mentioned the edition

By utilizing 64-bit memory addressing, version 4.0.23.21468 allowed the simulator to utilize almost all available system RAM. This change enabled: Higher resolution textures and more complex 3D models. Increased draw distances without performance degradation. The ability to run multiple high-fidelity add-ons at once. Professional Plus vs. Professional License Core Version 4 Features To run v4 effectively,

The "Professional Plus" license is the most advanced tier of Prepar3D, offering specialized tools not found in the standard Professional or Academic versions: