HP ProDesk 400 G3 Small Form Factor Maintenance And Service Manual page 43

● If you are installing a 2.5-inch hard drive, place the drive in the drive cage (1) and secure the drive
with four M3 metric screws (2).
NOTE: The four screw holes for the 2.5-inch hard drive are stamped "B" on the top of the drive
cage.
6. Lower the drive cage into place.
Drives 35