Dell PowerEdge R430 Owner's Manual page 162

Figure 78. Removing the four 3.5 inch hard drive SAS/SATA backplane
1. guide (2)
3. release tab (2)
5. backplane signal cable
7. hard drive/SSD connector (4)
162
2. hard drive/SSD backplane
4. backplane power cable
6. SAS_A connector on the backplane