CFF expander + 8i/16i RAID/HBA adapter

The following shows the cable connections for the front 24 x 2.5-inch SAS/SATA + middle 8 x 2.5-inch SAS/SATA+ rear 4 x 2.5-inch SAS/SATA configuration with one CFF expander and one 8i/16i RAID/HBA adapter.

Connections between connectors: 1 ↔ 1, 2 ↔ 2, 3 ↔ 3, ... n ↔ n

Front backplane cable routing​

Figure 1. SAS/SATA cable routing to CFF expander and 8i/16i adapter

From	To
1 Backplane 1: SAS	1 CFF expander: C0
2 Backplane 2: SAS	2 CFF expander: C1
3 Backplane 3: SAS	3 CFF expander: C2
4 CFF expander: RAID/HBA	4 8i/16i adapter Gen 4: C0 Gen 3: C0C1
5 CFF expander: PWR	5 Onboard: CFF EXP PWR

Middle/Rear backplane cable routing​

Figure 2. Middle/Rear backplane cable routing

From	To
1 Backplane 4: SAS Backplane 5: SAS	1 CFF expander: C3
2 Backplane 6: SAS	2 CFF expander: C4
3 Backplane 4: PWR	3 Onboard: 7mm power connector
4 Backplane 5: PWR Backplane 6: PWR	4 Onboard: rear backplane power Onboard: rear backplane sideband Riser 1: PWR