DFI TPC121 Installation Guide - Manual (Page 16)

16
2. The latch is used to lock the Mini PCIe card into
position. Insert the latch into the mounting holes and
then push the latch down until the clips at each end of
the latch lock into position. You will hear a distinctive
"click", indicating the latch is correctly locked into
position.
Latch
Latch
Mini PCIe slot
Mounting hole