That's a pretty good price for those that need one.
Be aware, you should probably only use this on 19" monitors. It has a 120V / 100VA rating, which implies about a 95 watt maximum draw. (120 volts @ 1 amp = appx 120 watts, thus 100 volt amps = appx 95 watts)
Double check your monitor's current draw. Replacement 19" chassis are around 85 watts. 25 and higher push 100 or more... older ones may be more.
Electrical tip of the day: Attempting to draw too many amps from too low a transformer will cause the transformer to overheat and either fail or become a fire hazzard.