OnePlus 5 A5000

[Hiistakes]

Hey guys,
I am planning to buy a OnePlus 5 from WondaMobile and they sell the A5000 model. Is that a chinese version ?
They also say in the website that they will install the OxygenOS ROM, will it cause any problems and finally is it compatible with all the customs ROMS and TWRP ?

Thanks in advance

EDIT : Got the answer by searching, sorry for the thread

 

[THE_KINGDOM]

I've got a OnePlus5 N.America and it's a A5000

 

[ultramag69]

Apparently there is only one model.
Bands are determined with software - the region rom you flash on setup (it's automatic) determines what software and bands are active.