Telling a high-quality PC power supply apart from a cheap knockoff comes down to reading the specs carefully and sticking to reputable hardware standards. Saving $20 today on a sketchy, uncertified unit might feel like a win, but it’s a gamble that could cost you a $500 graphics card down the line. Stick to verified efficiency ratings, robust voltage protections, and solid warranties. Your PC and your wallet, will thank you in the long run.