Samsung SyncMaster 940UX Owner's Manual page 14

See Connecting the Monitor
RGB IN
Connect the signal cable to the 15-pin, RGB IN on the back of your
monitor.
Kensington Lock
The Kensington lock is a device used to physically fix the system
when using it in a public place.
(The locking device has to be purchased separately.)
For using a locking device, contact where you
purchase it.
Stand Stopper
Remove the fixing pin on the stand to lift the monitor up and down.
for further information regarding cable connections.