EVGA
EVGA 123-GM-0550-Y1 SuperNOVA 550W SFX Power Supply
★★★★★
Compact Powerhouse: EVGA SuperNOVA 550 GM Power Supply The EVGA SuperNOVA 550 GM is a fully modular power supply designed for small form factor builds. With 80 Plus Gold certification and a 7-year warranty, it delivers reliable and efficient power with added peace of mind. Specifications: Wa...
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*Price sourced from Amazon.com. Last updated:Jun 27, 2026.Price and availability are subject to change.
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Overview
Compact Powerhouse: EVGA SuperNOVA 550 GM Power Supply
The EVGA SuperNOVA 550 GM is a fully modular power supply designed for small form factor builds. With 80 Plus Gold certification and a 7-year warranty, it delivers reliable and efficient power with added peace of mind.
Specifications:
- Wattage: 550W
- Certification: 80 Plus Gold
- Form Factor: SFX
- Modularity: Fully Modular
- Warranty: 7 Year Warranty
- Voltage: 100-240V (Multiple Voltage Compatible)
Key Features
550W SFX form factor
80 PLUS Gold certified, with 90% (115VAC) / 92% (220VAC~240VAC) efficiency or higher under typical loads
Fan Size/ Bearing: 92mm double Ball Bearing
Heavy-duty protections, including OVP, UVP, OCP, OPP, and SCP
7 year
Specifications
Wattage
550W
Form Factor
SFX
Efficiency Certification
80 PLUS Gold
Efficiency (115VAC)
90% or higher
Efficiency (220-240VAC)
92% or higher
Fan Size
92mm
Fan Bearing Type
Double Ball Bearing
Protections
OVP, UVP, OCP, OPP, SCP
Warranty
7 years
Pros & Cons
👍 Pros
- Provides 550W of stable power, suitable for powering compact gaming rigs or small form factor PCs.
- Achieves 80 PLUS Gold certification, indicating high energy efficiency (90% at 115VAC, 92% at 220-240VAC).
- Equipped with a 92mm double ball bearing fan for effective cooling and enhanced durability.
- Includes heavy-duty protections like OVP, UVP, OCP, OPP, and SCP, safeguarding components from electrical issues.
- Comes with a substantial 7-year warranty, offering long-term reliability and manufacturer support.
👎 Cons
- The SFX form factor means it is specifically for small form factor cases and will not fit standard ATX enclosures without an adapter.
- While 550W is sufficient for many builds, it may not be enough for high-end graphics cards or extensively overclocked systems.
- The 92mm fan, while durable, might be louder under heavy load compared to larger fans found in ATX power supplies.
- The "heavy-duty protections" are standard for quality PSUs and not unique features that significantly differentiate it from other certified units.
- Cable management might be challenging in very small cases, and the modularity (or lack thereof) is not specified in the features.
Frequently Asked Questions
What is the wattage output of the EVGA SuperNOVA 550W SFX power supply?
This EVGA SuperNOVA power supply delivers 550W, making it suitable for compact PC builds.
What efficiency rating does this power supply have?
It is 80 PLUS Gold certified, ensuring 90% (115VAC) or 92% (220VAC~240VAC) efficiency under typical loads.
What type of fan is used in this power supply?
The EVGA SuperNOVA 550W SFX features a 92mm double ball bearing fan, known for its durability and cooling performance.
What safety protections are included with this power supply?
It comes with heavy-duty protections including OVP (Over Voltage), UVP (Under Voltage), OCP (Over Current), OPP (Over Power), and SCP (Short Circuit Protection).
How long is the warranty for the EVGA SuperNOVA 550W SFX power supply?
This power supply is backed by a substantial 7-year warranty, offering long-term peace of mind.
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