- This Gigabyte PSU is fully modular - no more extra cables, just connect with the ones you need - It supports PCIe Gen 5.0 so it can supply your GPU with 450 W of power - You'll have enough wattage to feed a high-end gaming PC with the 850 W power output - High-quality Japanese capacitors mean consistent and long-lasting electrical performance - It's rated at 80 Plus Gold, so it's power efficient and quiet - The 120 mm fan is keeps things cool and it stops completely under low load