Samsung 1501MP/1701MP Owner's Manual page 26

Setup - Installing a VESA base :
The monitor supports VESA mounting standard for use with various VESA mounting devices.
This monitor accepts a 75mm x 75mm VESA-compliant mounting interface pad.
You need to fold the monitor base
Align the four bolt holes (1) on the monitor base with the holes (2) on the VESA base and then fasten
the base with the four bolts (3) supplied.
Only the supplied bolts should be used.
Samsung Electronics will not be responsible for damages caused by using a base other than those
specified.
before installing a VESA base.
Installing VESA base