Samsung SyncMaster 243T Owner's Manual page 23

Setup
Installing VESA compliant mounting
Attaching a base
NOTE: This monitor accepts a 100mm x 100mm VESA-compliant mounting interface pad.
1. Rear cover mounting pad
2. Mounting interface pad
Align the Mounting Interface Pad with the holes in the Rear Cover Mounting Pad and secure it with
the four screws that came with the arm-type base, wall mount hanger or other base.
User's Manual