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Rectangular black ATX power supply with 135 mm fan and modular cable sockets

Seasonic

Seasonic VERTEX1000G 1000W ATX 3.0 power supply

SKU CH-G02F-3F3BB MPN VERTEX1000G

A 1000 W ATX 3.0 power supply with a 16-pin Gen 5 PCIe cable, full-modular cabling and a 135 mm FDB fan rated Cybenetics A for noise

  • TypeATX / ATX 3.0 Compatible
  • Maximum Power1000 W
  • Fans135 mm Fluid Dynamic Bearing (FDB) Fan
  • PCI-Express ConnectorATX 3.0 and 16-Pin Gen 5 PCIe Cable (12VHPWR)
  • Max PSU Length160 mm
  • ModularFull Modular

Options ATX 3.0 Gold (1000W)

  • 80 PLUS Gold certification delivers high-efficiency power conversion
  • ATX 3.0 and 12VHPWR cable support modern GPU connectivity
  • Fully modular cabling reduces clutter and simplifies builds
  • 135 mm FDB fan with hybrid silent control keeps noise low
  • Japanese 105 °C capacitors ensure long-term reliability

Power for modern GPUs

The Seasonic VERTEX GX-1000 is a 1000 W ATX 3.0 power supply built for systems that need stable delivery to current graphics cards. Its fully modular cable set keeps the interior tidy and simplifies routing in standard cases. The unit targets builders who want a single, quiet source for a high-end GPU and CPU combination.

12VHPWR connector included

A native 16-pin Gen 5 PCIe cable (12VHPWR) ships in the box, removing the need for adapters when installing compatible graphics cards. The PSU meets ATX 3.0 timing and power-excursion requirements, so transient spikes are handled within spec. 80 PLUS Gold certification and Cybenetics A noise rating confirm efficient, low-noise operation under load.

Fits standard ATX layouts

At 160 mm long the unit sits in most mid-tower and larger chassis without blocking drive bays or radiator mounts. The 135 mm fluid-dynamic-bearing fan runs under hybrid silent control, staying idle at low loads and ramping only when needed. Japanese 105 °C capacitors and tight ±3 % voltage regulation on the 12 V, 5 V and 3.3 V rails support long-term reliability.

Highlights

  • 80 PLUS Gold certification delivers high-efficiency power conversion
  • ATX 3.0 and 12VHPWR cable support modern GPU connectivity
  • Fully modular cabling reduces clutter and simplifies builds
  • 135 mm FDB fan with hybrid silent control keeps noise low
  • Japanese 105 °C capacitors ensure long-term reliability

Specifications

BrandSeaSonic
ModelVertex GX-1000
TypeATX / ATX 3.0 Compatible
Maximum Power1000 W
Fans135 mm Fluid Dynamic Bearing (FDB) Fan
PCI-Express ConnectorATX 3.0 and 16-Pin Gen 5 PCIe Cable (12VHPWR)
Max PSU Length160 mm
ModularFull Modular
Energy-Efficient80 PLUS GOLD Certified
PSU Noise LevelCybenetics A
OutputAmple +12 V Output
Dimensions6.3" L x 5.9" W x 3.4" H
Weight4.34lbs
Shipping weight3.51 kg
Package size345 × 185 × 114 mm

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Questions about this item

How much power does the 1000 W rating actually deliver to components in a real build?

The unit can supply its full 1000 W continuously to system components, with the +12 V rail providing the vast majority of that power for modern CPUs and GPUs.

What does the ATX 3.0 and 12VHPWR connection mean for GPU compatibility?

The native 12VHPWR cable supports the ATX 3.0 power-excursion requirements of current-generation graphics cards without adapters.

Will the 160 mm length and 135 mm fan fit in a standard mid-tower case?

At 160 mm long it matches the typical ATX power-supply clearance of most mid-tower chassis, and the 135 mm fluid-dynamic-bearing fan sits within the standard mounting footprint.

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