I have the system on the floor, and I want to put the monitor hanging from the ceiling by the cash register, so they can see all the cameras, now i know that vga in the back wont reach all the way up to top thru drop ceiling, so what i need, just a regular vga extension, wont it kill the signal from the computer to the monitor?
please advise

Shouldn't be a problem....I've run extensions up to 25 feet without a problem.

If you want to go further than 25 feet get a small vga amp 1 in 2 out

in from the computer out to local monitor and one out to remote monitor up to 250 ft

i've gone 50ft. no problems

Buya quality cable, look for ferrites at each end.

I have a 15' that has problems and a 100' that doesn't.