Infortrend EonStor GSa 5000 Series Hardware Manual page 32

4. Pull the ejection handles to remove the whole controller from the enclosure.
5. Install the expansion board into the SAS expansion slot, then secure it with a screw.
IMPORTANT! If you are using only one SAS expansion host board, you must install it to the host
board's slot 10. This slot is located on the rightmost side of the controller.
2-10 Chapter 2: Hardware installation