Power supply

The power supply is, again, one of the most important components in building a PC. The power supply is what converts current from the wall into usable power for everything inside your computer. Maximum output wattage, connectors it comes with, and efficiency are important factors to consider when purchasing a power supply.

9 Essential Components
Case

Power supply

CPU/Processor

Motherboard

CPU Cooling

Memory

Graphics

Storage

Optical Drive