The server configuration that was purchased from us has an x8 backplane. That means it supports a total of 8 drives. Changing the backplane is not supported. There are R730 configurations for a 2.5" x16 backplane. You can try installing that backplane, but I don't know what parts will be required or any issues you may encounter with swapping the backplane. Thanks
Hi Guy's,   We have a PowerEdge R730, that we bought with 8 drives and it has still 4 empty slots for new drives but there are not controleres behind them so we can not add any new drive to it. Is it possible for us to buy some sort of expression card that allow us to add 4 more drive to this server?   Thanks
expression card Poweredge R730