Onboard connectors + 8i RAID/HBA adapter + Retimer card
The following shows the cable connections for the front (8 x 2.5-inch SAS/SATA + 16 x 2.5-inch NVMe) configuration with one 8i RAID/HBA adapter and one retimer card.
To connect the processor interconnection cable when two processors are installed, see Processor interconnection cable routing.
Connections between connectors: 1 ↔ 1, 2 ↔ 2, 3 ↔ 3, ... n ↔ n
Figure 1. SAS/SATA cable routing  | Figure 2. NVMe cable routing  | ||
| From | To | From | To |
| 1 Backplane 1: SAS | 1 8i adapter
| 1 Backplane 2: NVMe 0-1 | 1 Onboard: PCIe 6 |
| 2 Backplane 2: NVMe 2-3 | 2 Onboard: PCIe 8 | ||
| 3 Backplane 2: NVMe 4-5 | 3 Onboard: PCIe 5 | ||
| 4 Backplane 2: NVMe 6-7 | 4 Onboard: PCIe 7 | ||
| 5 Backplane 3: NVMe 0-1 | 5 Retimer card: C0 | ||
| 6 Backplane 3: NVMe 2-3 | 6 Retimer card: C1 | ||
| 7 Backplane 3: NVMe 4-5 | 7 Onboard: PCIe 9 | ||
| 8 Backplane 3: NVMe 6-7 | 8 Onboard: PCIe 10, 11 | ||
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