A power supply unit is a core electrical device that helps to provide electric energy to your overall computer. The main purpose of a PSU is to convert electric current from a source to the correct voltage, and frequency to power the load. There are different form factors of a Power-Supply: SATA, ATX, ATX12V, Small Form Factor, 4/8 PIN CPU, 6/8 PIN GPU, 24 Pin Motherboards, etc. Because it supplies electrical strength to your entire PC that's why it is an essential part of a computer so you must purchase a PSU that will provide you all the required power that your PC components need. Following brands are one of the best brands to buy a Power Supply in Pakistan: ASUS, Cooler Master, Corsair, Gigabyte, Thermaltake, etc. If you want to build an awesome-looking gaming PC then you also have the choice to get an outstanding-looking RGB PSU. You can purchase a Power Supply in Pakistan at a cheap price from IndusTech.