Power Supply Unit provides 12v Supply to Computers. Because Power is a main factor affecting the computer in working. If you make more attention on selecting good power supply you can cut your expense and time to maintain the computers.

It is recommendable to use 200/250Watt power supply for Pentium-I category and 230/250Watt ATX Power Supply for Pentium-II Category Computer.

Some of the good power supply manufacturers are-:

• Microtek

• Frontec

• Oscar(m7)

• Intex Automation

• Enlight

• Bull power