CFF 16i RAID/HBA adapter
The following shows the cable connections for the 16 x 2.5-inch SAS/SATA configuration with one CFF 16i 
RAID/HBA adapter.
From To
Backplane 1: SAS CFF 16i RAID/HBA adapter: C0, C1
Backplane 2: SAS CFF 16i RAID/HBA adapter: C2, C3
CFF 16i RAID/HBA adapter: MB Onboard: PCIe 3
CFF 16i RAID/HBA adapter: PWR Onboard: RAID PWR
Connections between connectors: 
1  ↔  1 ,  2  ↔  2 ,  3  ↔  3 , ...  n  ↔  n
Figure 40. Cable routing for 16 x 2.5-inch SAS/SATA configuration with one CFF 16i RAID/HBA adapter
Chapter 3. Internal cable routing 95