Dell EMC XC Core XC650 Installation And Service Manual page 107

Figure 97. Removing the filler bracket
2. Slide the serial COM port into the expansion card riser.
3. Connect the serial COM port cable to the serial port.
4. Close the expansion card retention latch.
5. Connect the serial COM port cable to the connector on the rear I/O board.
NOTE: The numbers on the image do not depict the exact steps. The numbers are for representation of sequence.
Installing and removing system components 107