VS550
The Corsair VS550 is a 550W ATX power supply rated 80+ White, non-modular. Independent lab testing puts it at A- for noise, averaging 29.1 dB(A) across the load range, meaning quiet, audible under heavy load. Full specs, quality score and current prices are below.
Prices update regularly and may differ at the retailer. This page contains affiliate links.
Quality score
How we score →A power supply has no performance benchmark: every 550W unit delivers 550W. This scores how well built and how liveable the VS550 is, out of 100, from six published factors.
Better always scores higher, but the steps are uneven on purpose: Bronze to Gold is worth 11 of the 25 efficiency points, Gold to Titanium only 6. A factor we hold no value for scores zero rather than being skipped, so a unit we know little about never outranks a fully specified one. That does mean a zero can mean either poor or unknown, which is what the confidence figure above is for. Physical size scores nothing: ATX is a fit decision, not a quality one.
Measured in the lab
Everything else on this page is a specification the manufacturer published. These figures were measured from the VS550 itself by Cybenetics, an independent test lab.
- Average efficiency
- 82.8%Averaged across the full load range
- Average noise
- 29.1 dB(A)Cybenetics grade A-, averaged across the load range
- Zero-RPM mode
- NoThe fan runs at every load
- Fan bearing
- SleeveWhat the fan spins on, and how long it lasts
Each figure is an average over more than 1,450 load combinations, which is not the same measurement as the 80+ White badge on the box. That badge certifies the unit at a handful of fixed load points; this covers the whole range, including the light loads a desktop spends most of its time at. Lab figures exist for roughly a fifth of the units we track, so their absence on another page means that unit has not been through this lab, not that it did badly.
Specifications
Output & Rating
- Continuous power
- 550 W
- Efficiency
- 80+ White
- Price per watt
- $0.289/W
Connectors
- Motherboard
- 24-pin
- CPU (EPS)
- 1
- PCIe
- 2 (6+2)
- 12V-2x6 / 12VHPWR
- —
- SATA
- 6
Physical
- Form factor
- ATX
- Depth
- 125 mm
- Fan size
- 120 mm
- Modularity
- Non-modular
Platform
- Built by
- HEC
Electrical & Warranty
- Protections
- OVP, UVP, SCP, OTP, OPP
- Input voltage
- 100-240 V
- Warranty
- 3 years
- Part number
- CP-9020171-NA
Compare the VS550 against every other unit on the power supply comparison table. Not sure how much wattage you need? The power supply guide works through the sizing.
Where to buy the VS550
Every in-stock retailer offer we track, cheapest first.
| Retailer | Availability | Price | Updated | Buy |
|---|---|---|---|---|
| Newegg | In stock | $159.00 |  |
The VS550 starts from $159.00 across 1 retailer, which works out at $0.289/W. Prices update daily from live stock.
What the VS550 can power
Compare all GPUs →The graphics cards this 550W unit meets the system requirement for, ranked fastest first at 1080p, with the margin left over. The resolution follows the wattage, because a unit this size is bought for a card that will be run at 1080p. Headroom is measured against the card maker’s own whole-system recommendation, so 0 W means it meets that recommendation exactly rather than falling short.
| Graphics card | Card draw | PSU advised | Headroom |
|---|---|---|---|
| Radeon RX 9060 XT 16 GB AMD | 160 W | 450 W | +100 W |
| Radeon RX 9060 XT 8 GB AMD | 150 W | 450 W | +100 W |
| GeForce RTX 4060 Ti 8GB Nvidia | 160 W | 550 W | +0 W |
| GeForce RTX 4060 Ti 16GB Nvidia | 165 W | 550 W | +0 W |
| GeForce RTX 5060 Nvidia | 145 W | 550 W | +0 W |
| Radeon RX 7600 XT AMD | 190 W | 550 W | +0 W |
| GeForce RTX 4060 Nvidia | 115 W | 550 W | +0 W |
| Radeon RX 7600 AMD | 165 W | 550 W | +0 W |
Affiliate disclosure: Some links on this page are affiliate links — MaxMyBuild may earn a commission at no extra cost to you if you buy through them. As an Amazon Associate, MaxMyBuild earns from qualifying purchases. For Amazon, current price and availability are shown on the Amazon product page; product prices and availability are accurate as of the date and time of purchase and are subject to change. Prices shown for other retailers are approximate and may differ at checkout. “Search” links are non-affiliate and provided for convenience only.