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Compact SFX power supply unit with matte black finish and modular cable ports visible

EVGA

EVGA SuperNOVA 450 GM SFX Power Supply 123-GM-0450-Y1

SKU CH-DV8K-PHMDH MPN 123-GM-0450-Y1

SFX power supply delivering 450 W with 80 Plus Gold efficiency, fully modular cables and a 92 mm double ball bearing fan

  • TypeSFX
  • Maximum Power450 W
  • Fans1 x 92mm Double Ball Bearing Fan
  • PFCActive
  • Main Connector1 x 24 Pin ATX
  • +12V RailsSingle

Options SFX 80+ Gold (450W)

  • 80 Plus Gold certification delivers 90% typical efficiency at 115 VAC
  • Fully modular cables keep SFX builds clean and improve airflow
  • 100% Japanese capacitors provide long-term reliability under load
  • Single +12V rail supplies 54.1 A for stable GPU power
  • ECO mode with 92 mm double ball bearing fan reduces noise at low loads

SFX Power Supply for Compact Builds

This EVGA SuperNOVA unit delivers 450 W in an SFX form factor measuring 124 mm in length. It includes an ATX mounting bracket for wider case compatibility. The fully modular design uses 100% Japanese capacitors and a single +12 V rail rated for 54.1 A. An ECO mode works with the 92 mm double ball bearing fan to reduce noise at low loads.

80 Plus Gold Efficiency Limits

The power supply meets 80 Plus Gold certification with 90 % typical efficiency at 115 VAC input. Active PFC operates across a 100 to 240 V range at 50 or 60 Hz. Protection circuits include OVP, OCP, OTP, OPP, SCP and UVP. A DC-to-DC converter handles 3.3 V and 5 V regulation for stable output under varying loads.

Straightforward Modular Installation

Fully modular cables let builders connect only the required 24-pin ATX, two 8-pin PCIe (6+2) and four SATA power leads. The supplied Power ON Self Tester enables a quick functional check before the unit is mounted. The only common issue is forgetting to seat the modular plugs fully, which can cause intermittent power on the affected rail.

Points forts

  • 80 Plus Gold certification delivers 90% typical efficiency at 115 VAC
  • Fully modular cables keep SFX builds clean and improve airflow
  • 100% Japanese capacitors provide long-term reliability under load
  • Single +12V rail supplies 54.1 A for stable GPU power
  • ECO mode with 92 mm double ball bearing fan reduces noise at low loads

Caractéristiques

BrandEVGA
SeriesSuperNOVA 450 GM
Model123-GM-0450-Y1
TypeSFX
Maximum Power450 W
Fans1 x 92mm Double Ball Bearing Fan
PFCActive
Main Connector1 x 24 Pin ATX
+12V RailsSingle
PCI-Express Connector2 x 8 Pin (6+2) PCIE
SATA Power Connector4 x SATA
Haswell SupportCertified
Max PSU Length124 mm
ModularFull Modular
Efficiency90% (115 VAC) or Higher Typical
Energy-Efficient80 PLUS GOLD Certified
Over Voltage ProtectionYes
Input Voltage100 - 240 V
Input Frequency Range50/60 Hz
Input Current6.5 - 3A
Output+3.3V @ 20A, +5V @ 20A, +12V @ 37.5A, +5VSB @ 2.5A, -12V @ 0.3A
MTBF100,000 Hours
ApprovalsTUV, CB, CE, FCC, cTUVus, WEEE, RoHS Compliance with ErP Lot 6 2013 Requirement
Connectors1 x 24 pin ATX
1 x 8 pin (4+4) EPS (CPU)
2 x 8 pin (6+2) PCIe
4 x SATA
4 x 4 pin Peripheral
1 x Floppy
Cable SpecATX Cable: 1 x 300mm
EPS Cable: 1 x 400mm
PCIe Cable: 1 x 400mm, 510mm
SATA Cable: 1 x 300mm, 410mm, 520mm, 630mm
Four-Pin Peripheral Cable: 1 x 300mm, 410mm, 520mm, 630mm
Floppy Adapter: 1 x 100mm
AC Power: 1 x 1500mm
Molex to FDD: 1 x
Features80 PLUS Gold certified, with 90% (115VAC) / 92% (220VAC~240VAC) efficiency or higher under typical loads
Fully Modular to reduce clutter and improve airflow
Double Ball Bearing fan for exceptional reliability and quiet operation
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)
Active Power Factor Correction
Auto ECO Mode to ensure silent operation under low to medium loads with no configuration necessary
SFX-
Dimensions2.48" x 4.92" x 3.94"
Weight3.10 lbs.
12V Power Connector1 x 8 Pin (4+4) EPS (CPU)
Floppy Connector1 x Floppy
Peripheral Connector4 x 4-Pin Peripheral
Poids d’expédition1.77 kg
Dimensions du colis272 × 201 × 99 mm

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Questions sur cet article

Should I pick the 450 W model or a higher-wattage SFX unit?

Choose the 450 W unit if your build draws less than 450 W total; the single +12 V rail can deliver up to 54.1 A, so it handles modern CPUs and GPUs within that budget.

What does the 80 Plus Gold rating mean once the PSU is installed?

At typical loads on 115 V mains the unit runs at 90 % efficiency or higher, so less power turns into heat and your electricity bill stays lower.

How does the SFX form factor and included bracket affect case compatibility?

The 124 mm long SFX chassis fits native SFX cases, and the supplied bracket lets you mount it in standard ATX cases as well.

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