Figure 392. Front backplane cable routing Figure 393. Rear backplane cable routingFrom To From To1 Backplane 1: SAS 1 32i adapter: C0 1 Backplane 4: SAS 0,SAS 11 32i adapter: C32 Backplane 2: SAS 2 32i adapter: C1 2 Backplane 4: PWR 2 Riser 2: PWR1, PWR23 Backplane 3: SAS 3 32i adapter: C216i RAID/HBA adaptersThe following shows the cable connections for the front 24 x 2.5-inch SAS/SATA + rear 8 x 2.5-inch SAS/SATA configuration with two 16i RAID/HBA adapters.Connections between connectors: 1 ↔ 1 , 2 ↔ 2 , 3 ↔ 3 , ... n ↔ n378 ThinkSystem SR665 V3 User Guide