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GAMDIAS PCIe 5.1 & ATX3.1 Gold 1000W Power Supply for GeForce RTX 5000 Series, 1000W Fully Modular ATX 80 Plus Gold Computer PSU for Gaming PC Desktops, Low-Noise Fan, HELIOS P2-1000G

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Availability: In Stock.
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Arrives Thursday, Nov 13
Order within 18 hours and 42 minutes
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Model: HELIOS P2-1000G


Features

  • 80 PLUS GOLD CERTIFIED EFFICIENCY: Guarantee up to 92% efficiency at 50% load reducing carbon footprint and power consumption, 80+ Gold certification offers steady voltage output with DC to DC topology design for the latest GeForce GPU.
  • RTX 5000 series Ready by PCIe 5.1 & ATX 3.1 with NATIVE 12VHPWR CABLE: HELIOS P2-1000G is designed to meet ATX 3.1 standards and PCIe Gen 5.1 connector compatibility while offering up to 200% total power excursion to fulfill the power requirements of next-generation RTX 5000 series graphics cards. The native 16 PIN (12VHPWR) PCIe connector can deliver up to 600W for PCIe 5.1 graphics cards, providing powerful and stable performance and allowing the PSU to natively run next-generation GPUs.
  • Quiet Operation with 135mm DUAL-BALL BEARING SMART FAN CONTROL: Featuring a high-quality 135mm dual-ball bearing fan, providing excellent thermals, acoustics, and high durability to ensure a longer PSU lifetime. Furthermore, the smart fan will adjust the fan speed and minimizes undesired noise.
  • FULLY MODULAR DESIGN & EXTENSIVE GPU SUPPORT: The HELIOS 1000 Wattage Gold PSU is designed to support new NVIDIA and AMD graphics cards with increased power demands and different connectors, with additional support to a 12+4-pin VGA power connector (12VHPWR) and up to four 6+2-pin VGA power connectors. This PSU offers complete protection, meeting full demands to help the system operate safely and stably.
  • PREMIUM JAPANESE CAPACITORS 105 C/221F: Made with the most reliable 100% high-quality Japanese 105C/221F electrolytic capacitors, providing great durability as well as offering the highest power stability. Made with premium DC to DC structure with full bridge LLC resonance assist and 12V synchronous rectification providing a safe and stable output.

Description

PEAK PERFORMANCE AND RELIABILITY HELIOS P1-1000G is a fully modular next- generation power supply unit featuring an 80 Plus Gold certification, supports ATX 3.0 and PCIe Gen 5.0, with 100% highly reliable Japanese capacitors. The PSU ensures top-of-the-line stability, reliability, and overclocking and eliminates system bottlenecks to achieve the best performance possible.

Model Name: HELIOS P2-1000G


Brand: GAMDIAS


Compatible Devices: Personal Computer


Connector Type: ATX, PCI Express


Output Wattage: 1000 Watts


Form Factor: ATX


Wattage: 1000 watts


Cooling Method: Air


Item dimensions L x W x H: 12.8 x 8.27 x 4.13 inches


Item Weight: 3300 Grams


Product Dimensions: 12.8 x 8.27 x 4.13 inches


Item Weight: 7.28 pounds


Manufacturer: GAMDIAS


Item model number: HELIOS P2-1000G


Date First Available: April 19, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Nov 13

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • functions well, helps my pc
Model: HELIOS M1-550B
really good!!
Reviewed in the United States on September 19, 2025 by Devina

  • One of the best for the price
Model: HELIOS P2-1000G
One year so far and is still working. I have an Rtx 4080 super with the 14700k intel, msi motherboard and aio cooling with 7 fans and have plenty of power.
Reviewed in the United States on September 29, 2025 by Christian Joel Lopez

  • Worked Good
Model: HELIOS M1-450B
Worked Great, functioned as intended
Reviewed in the United States on October 16, 2025 by Bryson

  • Easy to install
Model: Cooling Fan
Really solid power supply, runs quietly and provides stable power for my build. It’s also really easy to install and comes with all the necessary cables. No issues so far.
Reviewed in the United States on August 4, 2025 by Key

  • Excelente fuente de alimentacion para PC
Model: HELIOS M1-550B
Fuente de alimentación realmente sólida, funciona silenciosamente y proporciona energía estable para mi Computadora. También es muy fácil de instalar y viene con todos los cables necesarios. Excelente relación calidad-precio. Considero que es una fuente de alimentación fiable y económica, sobre todo porque tengo pensado añadir más capacidad de almacenamiento al sistema con el tiempo. Hasta ahora no hay problemas. Sinceramente la recomiendo un 100%. ... show more
Reviewed in the United States on October 15, 2025 by Elver

  • USED Unit Delivered
Model: HELIOS M1-450B
Order arrived on time. Opened this morning only to find that it was a USED unit. Dust and dirt in the fans etc. Have a replacement coming hopefully today. Same unit.
Reviewed in the United States on May 5, 2025 by Dangerous

  • Good
Model: HELIOS M1-450B
I could find for the money. High wattage with 80+ Gold cert. Not using for a gaming system but will be on 24/7. No issues with install or use - packaged well and worked as expected for mATX system with 4 drives.
Reviewed in the United States on August 14, 2025 by Emily

  • Inaccurate Product Description
Model: HELIOS P2-850G
GAMDIAS PCIe 5.1 & ATX3.1 Gold 850W Power Supply for GeForce RTX 5000/4000/3000 Series, 850W Fully Modular ATX 80 Plus Gold Computer PSU for Gaming PC Desktops, Low-Noise Fan, HELIOS P2-850G! I bought this PSU based on the above description! It is not modular, which I can see now that I look at the picture more closely. So yes, it's my fault for trusting the description. It's also the fault of whoever wrote the copy! It's getting a 3-star review, because I'm sure it's a fine PSU just not what I anticipated. Hopefully I will find an application for it, just not my current project! Because the return window closed yesterday while I was waiting for other components to arrive! ... show more
Reviewed in the United States on August 9, 2025 by Kevin J. Burke

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