QNAP TS-855X - Page 26

c. Insert the pushpin to secure the drive.
8. Attach the fan module.
a. Align the protruding part of the module with the hole on the chassis below the M.2 SSD slot.
b. Push the module toward the system board until the clip locks the module into place.
c. Attach the screws.
TS-855X User Guide
Installation and Conguration 25