Corsair TX850 vs Corsair TX850M psu?

[manineedhelp]

What is the difference between Corsair TX850 and a Corsair TX850M psu?
Help me

 

[Vic 40]

The first isn't modular and an older type (very),the latter is modular (semi) and the most recent,also the one to buy right now.

 

[Ralston18]

And this:

https://www.custompcguide.net/the-differences-between-all-corsair-power-supply-units/