DL380 G9 controller move

[stanbaker]

I have a 12 bay DL380 G9 LFF with a P840 controller in the PCIe slot.  I'd like to potentially move that controller to a DL380 G9 SFF with 25 bays.  I am wondering what I would need to supplement that controller.  I'm assuming an expander.  But I'm not sure about the specific cables to the backplane or the interconnect to the controller.

Thanks!