Samsung 225UN Quick Start Manual page 5

The configuration at the back of the monitor may vary from product to product.
POWER
RGB-IN /
Kensington Lock
POWER
: Connect the power cord for your monitor to the POWER on
the back of the monitor.
RGB-IN
: Connect the signal cable to the 15-pin, RGB-IN port on
the back of your monitor.
: Connect the of the monitor and the USB of the
computer with the USB cable.
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.