550W power supply prices
The lowest listed unit price is $0.08 per watt. The median is $0.25 per watt, across 17 ranked Newegg listings.
Compare 550W power supply prices
17 ranked products · Newegg US · Updated (7 hours ago).
Filter by model, manufacturer, condition or specification
Showing 17 of 17 products.
| Product and specifications | Newegg price | Unit price | Price reference | Condition and availability |
|---|---|---|---|---|
| Rosewill VNW 550W 80+ White Certified, Non-Modular Active PFC Design, Low-Noise Power Supply, High Quality Electrolytic Capacitor, 120mm FDB Silent...550 WSpecifications from the Newegg listing | $45.99 · View at Newegg Updated Sep 28, 2026 · 7h old | $0.08 / wattBest listed value · better unit price than 100% of 17 in the same wattage, condition group on this page | Launch reference not recorded | new · in-stockWarranty: not recorded |
| ASRock Challenger CL-550B 550W 80 PLUS BRONZE Certified Non-Modular Power Supply, 5 Years Warranty550 WSpecifications from the Newegg listing | $49.99 · View at Newegg Updated Sep 28, 2026 · 7h old | $0.09 / wattHigher value · better unit price than 81% of 17 in the same wattage, condition group on this page | Launch reference not recordedListing reference $64.99 · 23.1% lower; not a recorded previous sale | new · in-stockWarranty: not recorded |
| Lian Li RB 550W Power Supply, 80 Plus Bronze, ATX 3.1, PCIe 5.1 Ready, 135mm Low-Noise Fan, Built-in Cable Management, 5-Year Warranty, Non-Modular...550 WSpecifications from the Newegg listing | $49.99 · View at Newegg Updated Sep 28, 2026 · 7h old | $0.09 / wattHigher value · better unit price than 81% of 17 in the same wattage, condition group on this page | Launch reference not recorded | new · in-stockWarranty: not recorded |
| MSI MAG A550BN, Non-Modular Compact 550W Power Supply, 80+ Bronze, Low-Noise Fan, Active PFC Design, 5 Year Warranty550 WSpecifications from the Newegg listing | $49.99 · View at Newegg Updated Sep 28, 2026 · 7h old | $0.09 / wattHigher value · better unit price than 81% of 17 in the same wattage, condition group on this page | Launch reference not recordedListing reference $54.99 · 9.1% lower; not a recorded previous sale | new · in-stockWarranty: not recorded |
| Super Flower Combat DB 550W 80+ Bronze, 5 Years Warranty, Flexible Flat Cables, Fixed Cable Power Supply, SF-550C12DB, Black version550 WSpecifications from the Newegg listing | $64.99 · View at Newegg Updated Sep 28, 2026 · 7h old | $0.12 / wattHigher value · better unit price than 75% of 17 in the same wattage, condition group on this page | Launch reference not recorded | new · in-stockWarranty: not recorded |
| MONTECH Century II - 550W High-End ATX Gaming Power Supply - 80 Plus Gold Efficiency - Fully Modular - ATX 3.1 Ready - Zero RPM Low - 10 Years...550 WSpecifications from the Newegg listing | $69.90 · View at Newegg Updated Sep 28, 2026 · 7h old | $0.13 / wattMiddle range · better unit price than 69% of 17 in the same wattage, condition group on this page | Launch reference not recorded | new · in-stockWarranty: not recorded |
| ASUS TUF GAMING 550W Bronze PSU, Power Supply, Axial-tech Fan Design, Dual Ball Fan Bearings, 0dB Technology, 80 PLUS Bronze Certification, 80cm...550 WSpecifications from the Newegg listing | $84.99 · View at Newegg Updated Sep 28, 2026 · 7h old | $0.15 / wattMiddle range · better unit price than 63% of 17 in the same wattage, condition group on this page | Launch reference not recorded | new · in-stockWarranty: not recorded |
| 550W, ATX, single +12V rails with 45A output, Silent 120mmFan with 18dBA, efficiency 80Plus Gold certification, fully modular cable, 140mm depth,...550 WSpecifications from the Newegg listing | $87.99 · View at Newegg Updated Sep 28, 2026 · 7h old | $0.16 / wattMiddle range · better unit price than 56% of 17 in the same wattage, condition group on this page | Launch reference not recordedListing reference $114.99 · 23.5% lower; not a recorded previous sale | new · in-stockWarranty: not recorded |
| Seasonic S12III 550 SSR-550GB3 550W 80+ Bronze, ATX12V & EPS12V, Direct Output, Smart & Silent Fan Control, Power Supply550 WSpecifications from the Newegg listing | $139.00 · View at Newegg Updated Sep 28, 2026 · 7h old | $0.25 / wattMiddle range · better unit price than 50% of 17 in the same wattage, condition group on this page | Launch reference not recorded | new · in-stockWarranty: not recorded |
| CORSAIR CX-F RGB Series CX550F RGB 550W 80 PLUS Bronze Fully Modular ATX Power Supply, CP-9020216-NA550 WSpecifications from the Newegg listing | $150.00 · View at Newegg Updated Sep 28, 2026 · 7h old | $0.27 / wattMiddle range · better unit price than 44% of 17 in the same wattage, condition group on this page | Launch reference not recorded | new · in-stockWarranty: not recorded |
| Silverstone Extreme 550Rz Gold 80 PLUS Gold 550W SFX 12V 4.1 PCIe 5 Fully Modular SFX Power Supply550 WSpecifications from the Newegg listing | $156.15 · View at Newegg Updated Sep 28, 2026 · 7h old | $0.28 / wattMiddle range · better unit price than 38% of 17 in the same wattage, condition group on this page | Launch reference not recorded | new · in-stockWarranty: not recorded |
| CORSAIR VS Series VS550, 550W, Active PFC, 80 PLUS White Certified Power Supply550 WSpecifications from the Newegg listing | $159.00 · View at Newegg Updated Sep 28, 2026 · 7h old | $0.29 / wattMiddle range · better unit price than 31% of 17 in the same wattage, condition group on this page | Launch reference not recorded | new · in-stockWarranty: not recorded |
| CORSAIR CX series CX550 550W ATX12V 80 PLUS BRONZE Certified Active PFC Power Supply, CP-9020121-NA550 WSpecifications from the Newegg listing | $169.00 · View at Newegg Updated Sep 28, 2026 · 7h old | $0.31 / wattMiddle range · better unit price than 25% of 17 in the same wattage, condition group on this page | Launch reference not recorded | new · in-stockWarranty: not recorded |
| CORSAIR CX-F RGB Series CX550F RGB White 550W 80 PLUS Bronze Fully Modular ATX Power Supply, CP-9020225-NA550 WSpecifications from the Newegg listing | $199.00 · View at Newegg Updated Sep 28, 2026 · 7h old | $0.36 / wattLower value · better unit price than 19% of 17 in the same wattage, condition group on this page | Launch reference not recorded | new · in-stockWarranty: not recorded |
| EVGA SuperNOVA 550 GM, 80 Plus Gold 550W, Fully Modular, ECO Mode with DBB Fan, Includes Power ON Self Tester, SFX Form Factor, Power Supply,...550 WSpecifications from the Newegg listing | $209.00 · View at Newegg Updated Sep 28, 2026 · 7h old | $0.38 / wattLower value · better unit price than 13% of 17 in the same wattage, condition group on this page | Launch reference not recorded | new · in-stockWarranty: not recorded |
| Seasonic FOCUS GM-550, 550W 80+ Gold, Semi-Modular, ATX Form Factor, Low Noise, Premium Japanese Capacitor, 7 Year Warranty, Nvidia RTX 30/40...550 WSpecifications from the Newegg listing | $219.00 · View at Newegg Updated Sep 28, 2026 · 7h old | $0.40 / wattLower value · better unit price than 6% of 17 in the same wattage, condition group on this page | Launch reference not recorded | new · in-stockWarranty: not recorded |
| EVGA SuperNOVA 550 G3, 220-G3-0550-Y1, 80+ GOLD, 550W Fully Modular, EVGA ECO Mode with New HDB Fan, Includes FREE Power On Self Tester, Compact...550 WSpecifications from the Newegg listing | $237.00 · View at Newegg Updated Sep 28, 2026 · 7h old | $0.43 / wattLower value · better unit price than 0% of 17 in the same wattage, condition group on this page | Launch reference not recorded | new · in-stockWarranty: not recorded |
550W power supply over time
Daily prices and missing dates
| Date | USD / watt | Products observed |
|---|---|---|
| Aug 3, 2026 | $0.25 | 17 |
| Aug 4, 2026 | $0.25 | 17 |
| Aug 5, 2026 | $0.25 | 17 |
| Aug 6, 2026 | $0.25 | 17 |
| Aug 7, 2026 | $0.25 | 17 |
| Aug 8, 2026 | $0.25 | 17 |
| Aug 9, 2026 | $0.25 | 17 |
| Aug 10, 2026 | $0.25 | 17 |
| Aug 11, 2026 | $0.25 | 17 |
| Aug 12, 2026 | $0.25 | 17 |
| Aug 13, 2026 | No observation | None |
| Aug 14, 2026 | No observation | None |
| Aug 15, 2026 | No observation | None |
| Aug 16, 2026 | No observation | None |
| Aug 17, 2026 | $0.25 | 17 |
| Aug 18, 2026 | $0.25 | 17 |
| Aug 19, 2026 | No observation | None |
| Aug 20, 2026 | $0.25 | 17 |
| Aug 21, 2026 | $0.25 | 17 |
| Aug 22, 2026 | $0.25 | 17 |
| Aug 23, 2026 | $0.25 | 17 |
| Aug 24, 2026 | $0.25 | 17 |
| Aug 25, 2026 | $0.25 | 17 |
| Aug 26, 2026 | $0.25 | 17 |
| Aug 27, 2026 | No observation | None |
| Aug 28, 2026 | No observation | None |
| Aug 29, 2026 | No observation | None |
| Aug 30, 2026 | No observation | None |
| Aug 31, 2026 | No observation | None |
| Sep 1, 2026 | $0.25 | 17 |
| Sep 2, 2026 | No observation | None |
| Sep 3, 2026 | $0.25 | 17 |
| Sep 4, 2026 | $0.25 | 17 |
| Sep 5, 2026 | $0.25 | 17 |
| Sep 6, 2026 | $0.25 | 17 |
| Sep 7, 2026 | $0.25 | 17 |
| Sep 8, 2026 | $0.25 | 17 |
| Sep 9, 2026 | $0.25 | 17 |
| Sep 10, 2026 | $0.25 | 17 |
| Sep 11, 2026 | $0.16 | 14 |
| Sep 12, 2026 | $0.25 | 17 |
| Sep 13, 2026 | $0.25 | 17 |
| Sep 14, 2026 | $0.25 | 17 |
| Sep 15, 2026 | $0.25 | 17 |
| Sep 16, 2026 | $0.25 | 17 |
| Sep 17, 2026 | $0.25 | 17 |
| Sep 18, 2026 | $0.25 | 17 |
| Sep 19, 2026 | $0.25 | 17 |
| Sep 20, 2026 | $0.25 | 17 |
| Sep 21, 2026 | $0.25 | 17 |
| Sep 22, 2026 | $0.25 | 17 |
| Sep 23, 2026 | No observation | None |
| Sep 24, 2026 | $0.25 | 17 |
| Sep 25, 2026 | $0.25 | 17 |
| Sep 26, 2026 | $0.25 | 17 |
| Sep 27, 2026 | $0.25 | 17 |
| Sep 28, 2026 | $0.25 | 17 |
Compare the supply, not just the wattage
A lower price per watt does not measure power quality. Check the manufacturer's stated form factor, ATX specification, GPU connectors and warranty against your build.
| Model | 80 PLUS rating | ATX specification | Warranty |
|---|