b.  Detach the M.2 pass-through card assembly from the chassis (callout 2).
 
11.  If installed, remove all M.2 SSDs.
Retain the screw and M.2 SSDs. The screw will be used to secure the M.2 SSD on the new M.2 SSD pass-through card spare.
 
12.  Remove all SSD mounting screws (callout 1) and the hex screws (callout 2) from 22110 standoff on both sides of pass-through card.
Retain the screws. These screws will be secure on the new M.2 SSD pass-through card spare.