8i RAID/HBA adapters
Front backplanes: 24 x 2.5-inch SAS/SATA
The following shows the cable connections for the 24 x 2.5-inch SAS/SATA configuration with three 8i RAID/ 
HBA adapters.
From To
Backplane 1: SAS 8i RAID/HBA adapter on PCIe slot 2:
•  Gen 3: C0C1
•  Gen 4: C0
Backplane 2: SAS 8i RAID/HBA adapter on PCIe slot 3:
•  Gen 3: C0C1
•  Gen 4: C0
Backplane 3: SAS 8i RAID/HBA adapter on PCIe slot 5:
•  Gen 3: C0C1
•  Gen 4: C0
Connections between connectors: 
1  ↔  1 ,  2  ↔  2 ,  3  ↔  3 , ...  n  ↔  n
Figure 41. Cable routing for the 24 x 2.5-inch SAS/SATA configuration with three 8i RAID/HBA adapters
Chapter 3. Internal cable routing 97