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Black rectangular ATX power supply with 140 mm fan and modular cable sockets

TOPOWER

TOPOWER TOP-1000WG1 1000W ATX 3.0 PCIe 5.0 80 PLUS Gold Full Modular Power Supply

SKU CH-SQKT-T8S9K

ATX 3.0 power supply delivers 1000 W with 80 PLUS Gold efficiency, PCIe 5.0 12VHPWR cable and full modular cabling

  • Max wattage1000 W
  • Modular cablingYes
  • Fan configuration1 × 140 mm
  • Power factor correctionActive
  • Main power connector24 Pin
  • 12V railsSingle
  • ATX 3.0 and PCIe 5.0 ready for 4080 and 4090 graphics cards
  • 1000 W continuous output on a single +12 V rail
  • 80 PLUS Gold efficiency cuts waste heat and electricity cost
  • Full modular cabling keeps the build clean and airflow clear
  • 140 mm fan with silent switch runs quiet under load

1000W ATX 3.0 power supply for high-end builds

The TOPOWER TOP-1000WG1 delivers 1000 W through a single +12 V rail and meets ATX 3.0 and PCIe 5.0 requirements. It includes a native 12VHPWR cable for 4080 and 4090 class graphics cards. Full modular cabling keeps the build clean and airflow unobstructed.

Check ATX 3.0 support and 12VHPWR routing

Verify that your motherboard and GPU accept the 12VHPWR connector and that the case can accommodate a 160 mm deep unit. The 24 pin main connector and six 6+2 pin PCIe plugs cover most modern layouts, but confirm cable reach for your specific component placement before ordering.

140 mm fan with silent switch and Gold efficiency

A 140 mm fan runs at lower RPM under typical loads, and a silent switch lets you prioritise quiet operation. 80 PLUS Gold certification means high efficiency across the 100 to 240 V input range, reducing waste heat and lowering overall power draw during normal use.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $126.99
Cheaper than about 56% of the 10,869 comparable items (median $142.99).
Max wattage 1000 W
Higher than about 70% of the 930 comparable items (median 850 W).

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Specifications

Product
Brand nameTOPOWER
Product line80 Plus
Product colorBlack
Product typeATX 3.0 Compatible
Performance
Frequency50/60 Hz
Graphics
SLI supportReady
CrossFire supportReady
Ports & slots
PCIe power connectors6 × 6+2 Pin
SATA power connectors12
12V power connector1 × 4+4 Pin ATX/EPS 12 V
Floppy connector1
Peripheral connector4
Power
Max wattage1000 W
Modular cablingYes
Power factor correctionActive
Main power connector24 Pin
12V railsSingle
Efficiency certification80 PLUS GOLD Certified
Overvoltage protectionYes
Overload protectionYes
Supply voltage100–240 V
AC input frequency50/60 Hz
Rated power1000 W
+3.3V max. current25A
+5V max. current25A
-12V max. current0.5A
+5VSB max. current2A
Size & build
Top fans size140 mm
Compatibility
Haswell compatibilityReady
PSU length limit160 mm
In the box
Fans total quantity1
More details
Fan configuration1 × 140 mm

Questions about this item

What cables come in the box and which ones must I buy separately?

The fully modular unit ships with a 24‑pin ATX cable, a 12VHPWR connector for PCIe 5.0 graphics cards, six 6+2‑pin PCIe cables and twelve SATA power leads; no extra cables are required for a standard build.

How do I decide between the available versions or capacities of this model?

This specific SKU is a single 1000 W ATX 3.0 unit; there are no alternate wattages or versions listed, so the only choice is whether 1000 W matches your system’s peak draw.

What does the 1000 W rating actually mean once the PSU is installed in a PC?

It guarantees up to 1000 W of continuous DC output on a single +12 V rail, with 80 PLUS Gold efficiency and a 140 mm fan that can run quietly under load.

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