Dell PowerEdge R630 Owner's Manual page 159

Figure 84. Removing the 1.8-inch (x24) hard drive backplane
1. SD signal cable (3)
3. SAS cables (4)
5. guide pin
7. backplane
2. SD signal cable connector (2)
4. SAS cable connector (4)
6. guide pin slot
8. release tab (2)
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