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Black rectangular ATX power supply unit with modular cable ports and a single fan grille

YEYIAN

YEYIAN Pegasus 1000W power supply

SKU CH-YRRK-FYAAZ MPN 1000W

Fully modular 1000 W ATX 3.0 unit with native 12+4 pin PCIe 5.0 connector, 80 Plus Platinum efficiency and Japanese Nichicon capacitors

  • ColorBlack
  • TypeATX 12V
  • Maximum Power1000 W
  • Fans1
  • Fan LEDBLACK
  • PFCActive

Option 1000W

  • Delivers 1000 W with 92 % typical efficiency at 80 PLUS Platinum
  • Native 12+4 pin connector supports PCIe 5.0 graphics cards and ATX 3.0
  • All Japanese Nichicon electrolytic capacitors for long-term reliability
  • Full modular cabling plus < 30 mV ripple keeps noise low
  • 140 mm fluid-dynamic fan runs quietly under load

Product identity

The YEYIAN Pegasus 1000W is a fully modular ATX 12V power supply rated at 1000 W. It carries 80 PLUS Platinum certification with 92 % typical efficiency and meets ErP 2013 requirements. A native 12+4 pin PCIe 5.0 connector and Intel ATX 3.0 readiness target modern high-power graphics cards such as the 4080 and 4090.

Target build

This unit suits enthusiasts assembling systems that demand 1000 W of clean power with low ripple below 30 mV and tight voltage regulation. Builders who need only modest wattage or who cannot accommodate a 140 mm deep PSU should consider a lower-capacity or shorter model instead.

Deciding spec

The single specification that decides fit is the 1000 W maximum output combined with the native PCIe 5.0 12+4 pin connector; if your GPU requires that connector at this wattage the Pegasus matches, otherwise a different capacity or connector layout is required.

Highlights

  • Delivers 1000 W with 92 % typical efficiency at 80 PLUS Platinum
  • Native 12+4 pin connector supports PCIe 5.0 graphics cards and ATX 3.0
  • All Japanese Nichicon electrolytic capacitors for long-term reliability
  • Full modular cabling plus < 30 mV ripple keeps noise low
  • 140 mm fluid-dynamic fan runs quietly under load

Specifications

BrandYEYIAN
Series80 Plus
Model1000W
Part NumberYFP-1K031-01
ColorBlack
TypeATX 12V
Maximum Power1000 W
Fans1
Fan LEDBLACK
PFCActive
Main Connector20+4 Pin
+12V RailsYes
PCI-Express Connector2 x 6 Pin
SATA Power Connector3
SLICertified
Haswell SupportCertified
CrossFireCertified
Max PSU Length140 mm
ModularYes
Hold-up Time17ms min.
Energy-Efficient80 PLUS Certified
PSU Noise LevelCybenetics A++
Over Voltage ProtectionYes
Overload ProtectionYes
ProtectionYES
Input Voltage100 - 240 V
Input Frequency Range50/60 Hz
Connectors1 x 24 pin ATX
Cable SpecFlat
Power Rating1000W
Efficiency> 90%
Size/Dimensions5.9x6.3x3.3
Dimensions5.9x6.3x3.3
Weight3.7
Package ContentPower Supply, User Manual, Warranty
Frequency Range50/60 Hz
+5V Max. Current16.5A
+12V1 Max. Current16A
Fans Total Quantity1
Top Fans Size140mm
Top Fans Noise Levellow
Rear Fans Noise Level<30mV
Over Load ProtectionYes
Short Circuit ProtectionYes
Under Voltage ProtectionYes
Over Current ProtectionYes
Over Power ProtectionYes
Over Temperature ProtectionYes

Other versions of this model

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Questions about this item

Will the 1000W output handle a 4080 or 4090 with a high-end CPU?

Yes, the unit delivers 1000W and is listed as compatible with 4080 and 4090 graphics cards under the ATX 3.0 specification

Does the power supply include the new 12+4 pin connector for PCIe 5.0 graphics cards?

The supplier highlights confirm a native PCIe 12+4pin modular connector built for PCIe 5.0 graphics cards

How long is the unit and will it fit a standard ATX case?

The maximum length is 140 mm and the form factor is ATX 12V, which matches standard ATX case mounting points

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