Dell PowerEdge R730xd Owner's Manual page 198

Figure 112. Removing the 1.8 Inch (x18) SAS/SATA backplane
1. release pin
3. SAS A2 cable
5. control panel cable
7. USB cable
9. SAS cable (2)
11. hard drive backplane assembly
13. control panel connector
15. SAS A2 connector
198
2. left ear control panel cable
4. backplane signal cable
6. backplane power cable
8. mini SAS connector (2)
10. right ear control panel flex cable
12. hard drive backplane expander
14. backplane power connector
16. hard drive backplane connector (18)