Digital PSU vs Analog PSU

[ApplesDaMan]

So I recently bought an Corsair RM series PSU and it's under "Analog PSU". My first choice was to get an Corsair HX series PSU and it came as under "Digital PSU".

What is the difference between these? Is there a big difference and did I lose out on this?

The RM series one was cheaper during the sales so I picked that one up first.

 

[Suztera]

Not a big difference. Digital PSU have the option to monitor temperature, fan speed of the psu and how much wattage is pulled through the wall. You need Corsair Link to achieve that.
It is an optional feature, not needed.