Cheapest 550W power supply in the United States
Ranked by the best currently tracked price in the United States. Only prices captured within the last 14 days are considered — a stale capture cannot claim "cheapest".
14-day freshness rulePrices exclude sales tax.
550W
4 units · from $66.921SilverStone ET-HG EssentialBest priceSilverStone · captured Sep 13, 2026 · 80 Plus Gold · ATX$66.9223% below its 90-day median2Corsair CX650Corsair · captured Sep 2, 2026 · 80 Plus Bronze · ATX$74.993Seasonic FOCUS GXSeasonic · captured Sep 13, 2026 · 80 Plus Gold · ATX$139.00matches its all-time low4be quiet! Pure Power 12be quiet! · captured Sep 13, 2026 · 80 Plus Gold · ATX$170.0112% below its 90-day median