PowerEdge T550 - BOSS-S2 Upgrade

Hello,

I've previously purchased a PowerEdge T550, but opted to leave off the BOSS-S2 module at build time. Now that I've been running the system for a few months, I am working on reconfiguring how some of my drives are arranged - and plan to pass through the RAID controller and an HBA to a storage-focused VM. 

It seems the cleanest way to move the hypervisor out into its own separate controller (to avoid passthrough to the VM) would be to add the BOSS-S2 module. Looking at the parts available from the support page, I found the following: 

1. Dell BOSS-S2 Controller Card without Cable 
2. Dell 480GB SSD M2 SATA 6GB/s 512e Hard Drive - Single Stick 

I wanted to confirm a few things here before I put in the order:

• Is this BOSS-S2 card the same that would have come with the T550 originally? Looking at the manual, I see it slots in to a bay on the front. As there's no picture, it's hard to tell if it is the same one.
  
  
• The BOSS-S2 listing mentions "without cable". Is there a separate cable item I need to purchase? Is the cabling already present in the T550? I don't see a listing for "BOSS-S2 Controller Card with Cable".  
• Is the M.2 SSD I listed compatible with the BOSS-S2?
  
  
• I am working on the assumption that the BOSS-S2 will show up as a separate disk controller. Is that accurate? 

Thanks a lot in advance for any help. 

- Clay