Yep, I'm taking a bullet for us. If it doesn't work out, I can just return them, but given this particular controller is on the VMWare VSAN hardware compatibility list as being good for all flash and hybrid setups, even with the stock firmware these should be sufficient for what I'm doing (another VSAN dev cluster). I'm also seeing nothing that states this controller is hardware locked to IBM/Lenovo hardware only in the specifications: ServeRAID M5210 and M5210e SAS/SATA Controllers > Lenovo PressIf someone successfully crossflah it with a legacy LSI firmware. it can be a great deal.
I had some difficulties to crossflash the Dell H200E card to the LSI that i would let someone else test it before