Onboard connectors + Three retimer cards

The following shows the cable connections for the front 24 x 2.5-inch NVMe configuration with three retimer cards.

To connect the processor interconnection cable when two processors are installed, see Processor interconnection.

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

Figure 1. NVMe cable routing to onboard connectors and retimer cards

From	To
1 Backplane 1: NVMe 0-1	1 Onboard: PCIe 5
2 Backplane 1: NVMe 2-3	2 Onboard: PCIe 7
3 Backplane 1: NVMe 4-5	3 Onboard: PCIe 6
4 Backplane 1: NVMe 6-7	4 Onboard: PCIe 8
5 Backplane 2: NVMe 0-1, 2-3	5 Retimer card: C0, C1
6 Backplane 2: NVMe 4-5, 6-7	6 Retimer card: C0, C1
7 Backplane 3: NVMe 0-1, 2-3	7 Retimer card: C0, C1
8 Backplane 3: NVMe 4-5	8 Onboard: PCIe 9
9 Backplane 3: NVMe 6-7	9 Onboard: PCIe 10, 11