Dell PowerEdge VRTX - Manual (Page 21)

8. Connect the SAS cables to the upper backplane expander board.
Make sure that both SAS connectors are latched.
NOTE: The ends of the SAS cables that are plugged into the upper backplane expander board
have the labels UP EXP SAS A and UP EXP SAS B marked on the cables.
Figure 10. Installing the Upper Backplane Expander Board
1. backplane 2. guide pins on the hard-drive backplane
(2)
3. backplane expander board connectors (3) 4. backplane expander board
5. lower backplane expander board 6. release Lever
7. LOW EXP SAS A 8. UP EXP SAS A
9. UP EXP SAS B 10. SAS slot on backplane expander board
11. LOW EXP SAS B
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