12 x 3.5" SAS/SATA + 4 x 3.5" SAS/SATA

This topic provides cable routing information for the front 12 x 3.5-inch SAS/SATA expander backplane with a 4 x 3.5-inch SAS/SATA rear backplane.

8i adapter​

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

Figure 1. Front/Rear backplane signal cable routing		Figure 2. Rear backplane power cable routing
From	To	From	To
1 Backplane 1: SAS 1	1 Backplane 4: SAS	1 Backplane 4: PWR	Riser 2: PWR1, PWR2
2 Backplane 1: SAS 0	2 8i adapter Gen 4: C0 Gen 3: C0C1