I had a right hand drive JDM evo and know i got another evo and is not a USDM neither a JDM version..
My car has

Instead of fog light it has a rear fog light
A 300 KMH Speedo
No rear headrests or armrest on the rear seats
No HIDS
No keyless go

the JDM came with all the missing parts from this one..and some other cool features that the USDM model dont have

how can I check if my car is a EDM?

 

Is it a VII? If so the EDM will have 1 reverse and 1 red fog light.

No HIDs on the evo is a good indicator of an EDM too - In Europe, if there is HIDs, they must be fully auto leveling.

 

Yes It is a VII and has 1 Reverse and 1 Fog Light, Also No HIDs but when you turn on the Lights the move up and down automatically.. What are the other differences between this models and the USDM?

 

You have SAS (mild factory anti-lag)
Post pictures, engine bay, interior shots, and exterior, then people will see and tell more differences
I have a JDM/EDM evo IX RS, I don't know which it is, it's LHD, I have the rear fog in one tail lamp, mine didn't have HID's but came with leveling headlights, also no rear headrests or cupholder, no center console with lid, but I did get sport ABS brakes, power everything (mirrors, windows with one touch up and down all 4) rear wing and bbs wheels... And my rom says it is AUDM market, so who knows, wish I could call mitsu factory in japan and ask them lol