PSU Full Form: All About Power Supply Units in Computing

A Power Supply Unit (PSU) powers your PC by converting alternating current (AC) from the wall into direct current (DC) voltages (12V, 5V, and 3.3V) to run the CPU, GPU, and other hardware. It stabilizes the flow of power, protecting against surges. Important specs to look for include the power rating (wattage), efficiency (e.g., 80 Plus), and modularity for better cable management. Inside the PSU, AC is filtered and converted to DC, with a fan to keep things cool. Without it, your PC won’t operate. Check Hasons for the best desktop and accessory deals!