ProLiant ML310e Gen8 - Upgrading Hard Disk Backplane?

Hello,

I have a HP ProLiant ML310e Gen8 Server with Xeon E3-1220v2, and it comes with a non-hot-plug disk bays. After spending some time looking in the manuals, it seems that an upgrade to Hot Plug disks is possible with a backplane change...

Here's the backplane kit :

http://h30094.www3.hp.com/product/sku/10447646/mfg_partno/674839-B21

Now, the problem is, is that the only part I need to order and change?  (except for the hard disks, which would need an upgrade to the new "SmartDrives" anyway)

Thanks in advance!