this is proving nearly impossible to recover from. 4u hotswap cases basically dont exist in the used market right now. Theres an interesting case on aliexpress that looks like the norco 4224 that would work fine... but 300 bucks in shipping by slow boat.Fuckity fuck fuck fuck. Looks like it toasted all the backplanes in the case. Drives are an unknown. Can't get replacements for the backplanes either.
That's by far the worst scenario, id rather it had killed the drives than the case