16 x 2.5" SAS/SATA + 4 x 2.5" SAS/SATA

The following shows the cable connections for the front 16 x 2.5-inch SAS/SATA + middle 4 x 2.5-inch SAS/SATA configuration with one 16i RAID/HBA adapter and one 8i RAID/HBA adapter.

To connect riser 3 and riser 4 cables, see Riser 3/4 cage.

To connect riser 5 cables, see Riser 5 cage.

To connect cables to the front and rear OCP interposer cards, see OCP interposer cards.

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

Figure 1. Front backplane cable routing		Figure 2. Middle backplane cable routing
From	To	From	To
1 Backplane 1: SAS	1 16i adapter Gen 4: C0 Gen 3: C0C1	1 Backplane 5: SAS	1 8i adapter: C0
2 Backplane 2: SAS	2 16i adapter Gen 4: C1 Gen 3: C2C3	2 Backplane 5: PWR	2 Onboard: GPU power Rear backplane power Rear backplane sideband