i wanna buy a ups for my computer.
Specifications of my pc are as follows :
A Samsung dvd writer
Inter i5 2500k processor ( not overclocked )
Ram 4 Gb
Intel® Desktop Board DH67CL motherboard
samsung syncmaster 21inch lcd
suggest me good ups and how much watt it should be
You don't mention a graphics card. That is the most power consuming individual device in the system. If you are using integrated graphics, you can go with anything 300W+. If you are using a discrete graphics card, let us know which one. That will be a major determining factor.