Dell EMC ME4 Series Owner's Manual page 19

Figure 23. 5U84 controller enclosure—rear panel components (4-port iSCSI 10Gbase-T)
1 Controller module slot A
3 FCM slot 0
5 FCM slot 2
7 FCM slot 4
9 PSU slot 1
Figure 24. 5U84 expansion enclosure—rear panel components
1 Controller module slot A
3 FCM slot 0
5 FCM slot 2
7 FCM slot 4
9 PSU slot 1
NOTE: 5U84 controller enclosures support dual-controller only. If a partner controller fails, the array will fail over and run on a
single controller until the redundancy is restored. Each IOM slot must be occupied to ensure sufficient airflow through the
controller during operation.
2 Controller module slot B
4 FCM slot 1
6 FCM slot 3
8 PSU slot 0
2 Controller module slot B
4 FCM slot 1
6 FCM slot 3
8 PSU slot 0
Storage system hardware 19