Batboard

I am looking for information on an XPR4580.

Model M27UMH9J1AN

I am not able to find a model breakdown for these radios.

I am really wondering if this is a 4580, because I want to use it on 900MHz Ham Bands

It's an 800/900 radio, as denoted by the U in UMH. I am pretty sure that's one of the older models, shown by JA1AN, which IIRC may have been a non-GPS model. In any event it should work fine for 900 ham as long as it has the digital flash.