Hi,
Thank you so much for your interest in our products and for using our community.
The MCU-Link Pro has more features than MCU-Link, like Energy measurement, Analog signal monitor, etc. (For more details please refer to their documentation).
Both Debug Probes are supported on Windows 10, MacOS X and Ubuntu Linux platforms. Windows 7 is not included.
Hope it helps you. Please let me know if you have more questions about it.
Have a nice day!