Lenovo ThinkSystem SR655 V3 - Page 193

NVMe cable routing
Figure 134. NVMe cable routing to onboard connectors
From To
1 Backplane 2: NVMe 0-1, 2-3
1 Onboard: PCIe 1, 2
2 Backplane 2: NVMe 4-5, 6-7
2 Onboard: PCIe 3, 4
Chapter 6. Internal cable routing 183