https://www.pcgamer.com/grab-a-450-watt-80-plus-bronze-psu-for-just-dollar1999-right-now/

If you're in the process of building a budget PC, or you want to grab a PSU to keep around in case yours dies, this is a great deal. EVGA's 80+ Bronze 450W power supply is just $19.99 on the company's online store right now. That's a $30 reduction from the usual price, and no mail-in rebate is required.

There's nothing too special about this specific power supply—it uses a 120mm fan and it's not modular. The PSU has 80+ Bronze certification and a three-year warranty, so it shouldn't ever cause you problems. Also, all the cables are black sleeved, so you won't see ugly 'Ketchup and Mustard' cords in your build.