Dell EMC NX430 System Owner's Manual page 85

Figure 33. Removing and installing the four 3.5-inch hard drive SAS/SATA backplane
1 guide pin (2)
3 release tab (2)
5 backplane signal cable
7 hard drive or SSD connector (4)
2 hard drive or SSD backplane
4 backplane power cable
6 SAS A connector on the backplane
Installing and removing system components 85