Front + middle + rear backplanes: 16 x 2.5" SAS/SATA + 8 x 2.5" SAS/SATA + 4 x 2.5" SAS/SATA

This topic provides cable routing information for the front 16 x 2.5-inch SAS/SATA + middle 8 x 2.5-inch SAS/SATA + rear 4 x 2.5-inch SAS/SATA configuration with riser 5, OCP interposer cards, and two rear 16i RAID/HBA adapters.

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

Front backplane cable routing​

Figure 1. SAS/SATA cable routing to 16i RAID/HBA adapter

From
1 Backplane 1: SAS	1 16i adapter Gen 4: C0 Gen 3: C0C1
2 Backplane 2: SAS	2 16i adapter Gen 4: C1 Gen 3: C2C3

Figure 2. Middle backplane cable routing		Figure 3. Rear backplane cable routing
From	To	From	To
1 1 Backplane 5: SAS Backplane 6: SAS	1 16i adapter Gen 4: C1 Gen 3: C2C3	1 Backplane 4: SAS	1 16i adapter Gen 4: C0 Gen 3: C0C1
2 Backplane 5: PWR Backplane 6: PWR	2 Onboard: rear backplane power Onboard: rear backplane sideband Riser 1: PWR	2 Backplane 4: PWR	2 Onboard: 7mm power connector