[SOLVED] Can an RX 590 fit with an MSI B350M Bazooka motherboard?

yes, bear in mind the height of the card (vs the depth of the case) and the PCI-E power cable being top mounted will also require clearance especially if you have thick modular or sleeved cables

I'm using a FSP CMT210 case which claims it can support up to 360mm in length. The GPU has 2 fans which Amazon says it's 10.63 inches in length which converts to 270mm. It should be fine if all of this is correct.