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Compact 150mm ATX power supply unit with fully modular cables and a 130mm fan

EVGA

EVGA SuperNOVA 550 G3 220-G3-0550-Y1 power supply

SKU CH-XF18-7EP6T MPN 220-G3-0550-Y1

Fully modular 550 W ATX power supply with 80 PLUS Gold efficiency, a 130 mm hydraulic dynamic bearing fan and a compact 150 mm length

  • TypeATX12V / EPS12V
  • Maximum Power550 W
  • Fans1 x 130mm Hydraulic Dynamic Bearing Fan
  • Main Connector24Pin
  • +12V RailsSingle
  • PCI-Express Connector3 x 6+2-Pin

Options ATX 80+ Gold (550W)

  • 80 PLUS Gold certification delivers up to 92% efficiency at 220–240 V
  • Fully modular design lets you connect only the cables your build needs
  • Compact 150 mm length fits small-form-factor cases without crowding components
  • Hydraulic Dynamic Bearing fan runs quieter and lasts longer under load
  • Single +12 V rail provides 45.8 A for stable power to modern GPUs

550 W ATX power supply for compact builds

The EVGA SuperNOVA 550 G3 is a fully modular ATX12V and EPS12V unit rated at 550 W. It delivers 90 percent efficiency at 115 V and 92 percent at 220 to 240 V, meeting 80 PLUS Gold certification. A single +12 V rail provides 45.8 A for stable GPU and CPU power. The 130 mm hydraulic dynamic bearing fan runs quietly under load.

Suits small-form-factor PCs needing full modular

This unit fits builders who want a short 150 mm depth PSU with fully detachable cables for clean routing in tight cases. It includes three 6+2-pin PCIe connectors and six SATA power connectors for multiple drives. Systems requiring more than 550 W or additional PCIe cables should consider a higher-capacity model.

Straightforward install with a self-test tool

Full modularity lets you connect only the cables you need, reducing clutter inside the chassis. The box includes a power-on self-tester so you can verify the unit before mounting it. The compact length eases cable management in small cases. Ensure your case accepts a 150 mm deep ATX power supply before ordering.

Points forts

  • 80 PLUS Gold certification delivers up to 92% efficiency at 220–240 V
  • Fully modular design lets you connect only the cables your build needs
  • Compact 150 mm length fits small-form-factor cases without crowding components
  • Hydraulic Dynamic Bearing fan runs quieter and lasts longer under load
  • Single +12 V rail provides 45.8 A for stable power to modern GPUs

Caractéristiques

BrandEVGA
SeriesG3 Series
Model220-G3-0550-Y1
TypeATX12V / EPS12V
Maximum Power550 W
Fans1 x 130mm Hydraulic Dynamic Bearing Fan
Main Connector24Pin
+12V RailsSingle
PCI-Express Connector3 x 6+2-Pin
SATA Power Connector6
SLISLI Ready
CrossFireCrossFire Ready
Max PSU Length150 mm
ModularFull Modular
Efficiency90% (115 VAC) / 92% (220 VAC - 240 VAC)
Energy-Efficient80 PLUS GOLD Certified
Over Voltage ProtectionYes
Input Voltage100 - 240 V
Input Frequency Range50/60 Hz
Input Current10A
Output+3.3V @ 22A, +5V @ 22A, +12V @ 45.8A, +5Vsb @ 3.0A, -12V @ 0.5A
MTBF100,000 Hours
ApprovalsTUV, CB, CE, FCC, RCM, cTUVus, WEEE, RoHS, Compliance with ErP Lot 6 2013 Requirement
Connectors1 x 24Pin ATX
1 x 8pin (4+4) EPS (CPU)
3 x 8pin (6+2) PCIE
6 x SATA
4 x Four-Pin Peripheral
1 x Floppy
Features80 PLUS Gold certified, with 90% (115 VAC) / 92% (220 VAC - 240 VAC) efficiency or higher under typical loads
Highest quality Japanese brand capacitors ensure long-term reliability
Fully Modular to reduce clutter and improve airflow
NVIDIA SLI & AMD Crossfire Ready
Heavy-duty protections, including OVP (Over Voltage Protection), UVP (Under Voltage Protection), OCP (Over Current Protection), OPP (Over Power Protection), SCP (Short Circuit Protection), and OTP (Over Temperature Protection)
EVGA ECO Intelligent Thermal Control System elminates fan noise at low to medium loads
Hydraulic
Dimensions3.35" x 5.91" x 5.91"
Weight4.00 lbs.
Poids d’expédition2.54 kg
Dimensions du colis290 × 236 × 122 mm

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Questions sur cet article

Does this 550 W unit include the 24-pin ATX and 6+2-pin PCIe cables my build needs?

Yes, the fully modular design ships with a 24-pin main connector and three 6+2-pin PCIe cables so you only attach what the build requires.

Will the 150 mm length fit in the same case that currently holds a longer ATX supply?

At 150 mm it is shorter than most standard units, so it fits in cases that accept full-size ATX and in many compact chassis that reject longer models.

How can I verify the fan is running in ECO mode after installation?

The included Power On Self Tester lets you spin up the 130 mm hydraulic dynamic bearing fan outside the case to confirm zero-RPM idle and normal ramp-up under load.

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