Dell EMC ME4 Series Owner's Manual page 62

Figure 45. LFF drive carrier module in open position
2 Insert the drive carrier module into the enclosure. Make sure that the drive carrier is positioned such that the top of the disk is facing
up, and the handle opens from the left as you face the enclosure front panel.
Figure 46. Installing a LFF drive carrier module (1 of 2)
3 Slide the drive carrier fully into the enclosure.
4 Cam the drive carrier home. The camming foot on the carrier will engage into a slot in the enclosure. Continue to push firmly until the
handle fully engages. You should hear a click as the latch handle engages and holds the handle closed.
Figure 47. Installing a LFF drive carrier module (2 of 2)
62 Module removal and replacement