Figure 463. SAS/SATA cable routing Figure 464. NVMe cable routing
From To From To
1  Backplane 1: SAS
1  16i adapter 
•  Gen 4: C0
•  Gen 3: C0C1
1  Backplane 3: NVMe 0-1
1  Retimer card: C0
2  Backplane 2: SAS
2  16i adapter 
•  Gen 4: C1
•  Gen 3: C2C3
2  Backplane 3: NVMe 2-3
2  Retimer card: C1
3  Backplane 3: NVMe 4-5
3  Onboard: PCIe 9
4  Backplane 3: NVMe 6-7
4  Onboard: PCIe 10, 11
CFF 16i RAID/HBA adapter + Retimer card
The following shows the cable connections for the front (16 x 2.5-inch SAS/SATA + 8 x 2.5-inch Gen 5 
NVMe) configuration with one CFF 16i RAID/HBA adapter and one retimer card.
To connect the processor interconnection cable when two processors are installed, see 
“Processor 
interconnection cable routing” on page 311
.
Connections between connectors: 
1  ↔  1 ,  2  ↔  2 ,  3  ↔  3 , ...  n  ↔  n
430 ThinkSystem SR665 V3 User Guide