8. Apply pressure to the opposite edge of the host interface adapter to push the
adapter into the connector.
9. Check that the host interface adapter is installed squarely in its slot and
tighten the retaining thumbscrew ▌1▐.
10. Reinstall the SFP transceivers. To install a transceiver, push it fully into the
port and close the release handle.
11. If you purchased the additional 2-transceiver option, install the extra SFP
transceivers in the remaining ports.
20 Storwize V3500: Quick Installation Guide