Dell DR4300 System Owner's Manual page 96

3. riser guide-back (right)
5. expansion card riser 1 connector
Figure 39. Identifying connectors on the expansion card riser 1
a. expansion card slot 1
b. expansion card slot 2
c. expansion card slot 3
Figure 40. Removing the expansion card riser 2
1. power connector (for GPU cards)
3. riser guide-back
5. riser guide-front
96 Installing and removing system components
4. riser guide-back (left)
6. riser guide-front
2. expansion card riser 2
4. expansion card riser 2 connector