What other GPU’s are compatible with rx580 in crossfire?

[acm34292]

I currently have an Asus b350 plus motherboard and want to connect a second GPU’s through Crossfire. Is that still possible and if so what Gpu’s would work?

 

[Lutfij]

What is the make and model of your PSU? How old is it? I would suggest against crossfire and advise with looking towards the single most powerful GPU your wallet can afford. If you're yet hell bent on going crossfire, then you can read through this.