>>107052295
No issues on my end.
It's a chink case so I'm sure they let a few failed backplane boards slip through the QC process.
Or it may just be my setup. I know most people go backplane to HBA card, but I picked up a Chink mobo with 2 SFF-8643 (Mini-SAS) ports that allow me to fanout to all 8 ports on the backplane.
I picked it up for $250 during a sale. It now goes for $400-500. Lots of nice features I intend to later take advantage of (20 PCIE lanes, up to 96GB of ram, USB 4.0/Thunderbolt, 2x10G ports).