CFF expander + 8i RAID/HBA adapter + onboard connectors
•  “Front backplanes: 16 x 2.5-inch SAS/SATA + 8 x 2.5-inch Anybay” on page 149
•  “Rear backplane: 4 x 2.5-inch SAS/SATA” on page 151
Front backplanes: 16 x 2.5-inch SAS/SATA + 8 x 2.5-inch Anybay
SAS/SATA cable routing
From To
Backplane 1: SAS CFF expander: C0
Backplane 2: SAS CFF expander: C1
Backplane 3: SAS CFF expander: C2
CFF expander: RAID/HBA 8i RAID/HBA adapter on PCIe slot 2:
•  Gen 3: C0C1
•  Gen 4: C0
CFF expander: PWR Onboard: EXP PWR
Connections between connectors: 
1  ↔  1 ,  2  ↔  2 ,  3  ↔  3 , ...  n  ↔  n
Figure 104. SAS/SATA cable routing
Chapter 3. Internal cable routing 149