Dell E14S Series Owner's Manual page 66

Figure 22. Removing and installing the expansion card riser 1
1. expansion-card riser 1
3. riser guide pin
Figure 23. Removing and installing the expansion card riser 3
1. connector
3. expansion card release latch
2. If applicable, remove or install an expansion card on the riser.
3. Replace the expansion-card riser.
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2. connector
2. expansion card riser 3