@Blue1234 

Good day.

Thank you very much for your patience.

For the RE200 and RE220, they are almost the same on the hardware and specifications( based on the latest hardware version.).

https://www.tp-link.com/en/compare/?typeId=10&productIds=28869%2C1229

Did you have any special requirement, maybe we could double-check to see if there is any huge difference?

Thank you!