Figure 64. Cabling—2.5 Inch (x16) SAS/SATA and (x8) PCIe SSD Backplane (left and right side)

1.SAS (A&B) cable connector on the integrated storage controller card

3.system board

5.secondary PCIe SSD extender mini-SAS HD connector (A to D)

7.SAS B cable connector on the expander daughter card

9.SAS A cable connector on the expander daughter card

11.primary PCIe SSD extender mini-SAS HD connector (A to D)

2.integrated storage controller card

4.cable management tray

6.x24 hard-drive backplane

8.SAS jumper cable connector on the expander daughter card

10.SAS jumper cable connector on the backplane

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Dell E23S Series owner manual