Server model: twenty 2.5-inch SAS/SATA drives, four 2.5-inch SAS/SATA/NVMe drives, the rear hot-swap drive assembly, two 8i RAID adapters, one 16i RAID adapterFigure 53. Cable routing for server models with twenty 2.5-inch SAS/SATA drives, four 2.5-inch SAS/SATA/NVMe drives,the rear hot-swap drive assembly, two 8i RAID adapters, and one 16i RAID adapterCable From To1 Power cable for front backplane 1 Power connector on front backplane1Backplane power connector 1 on thesystem board2 SAS signal cable for frontbackplane 1SAS 0 and SAS 1 connectors on frontbackplane 1C0 and C1 connectors on the 8i RAIDadapter installed on the RAID adapterslot3 NVMe signal cable for frontbackplane 1NVMe 0, NVMe 1, NVMe 2, andNVMe 3 connectors on frontbackplane 1NVMe 0–1 and NVMe 2–3 connectorson the system board4 SAS signal cable for frontbackplane 2SAS 0 and SAS 1 connectors on frontbackplane 2C0 and C1 connectors on the 8i RAIDadapter installed in PCIe slot 45 Power cable for front backplane 2 Power connector on front backplane2Backplane power connector 2 on thesystem board6 Power cable for front backplane 3 Power connector on front backplane3Backplane power connector 3 on thesystem board88 ThinkSystem SR650 Setup Guide