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Silver rectangular ATX power supply unit with perforated side vent and 120mm fan grille

Rosewill

Rosewill VMG1000 1000W ATX 3.1 power supply

SKU CH-XDBD-3P1DF MPN VMG1000

A 1000 W ATX 3.1 power supply with full modular cables, 80 PLUS Gold efficiency, a 120 mm FDB fan and a native 12V-2x6 connector for PCIe 5.1 graphics cards in a compact 140 mm chassis

  • TypeATX 3.1 Compatible
  • Maximum Power1000 W
  • Fans1 x 120mm FDBfan
  • PFCActive
  • Main Connector20+4Pin
  • +12V RailsSingle

Options ATX 3.1 80+ Gold (1000W)

Struck-through versions exist but are not stocked here.

  • 1000 W output powers demanding builds
  • 80 PLUS Gold certification delivers up to 85 % efficiency
  • Full modular cabling keeps the case tidy
  • 120 mm FDB fan runs quietly under load
  • Native 12V-2x6 connector supports PCIe 5.1 graphics cards

1000 W ATX 3.1 power supply

The Rosewill VMG1000 delivers 1000 W of continuous power and meets the ATX 3.1 specification. It is built for systems that need a single 12 V rail and a native 12+4 pin 12V-2x6 connector for modern graphics cards. Full modular cabling keeps the interior tidy.

Thermals noise and 80 PLUS Gold efficiency

A 120 mm FDB fan and a steel shell with large vents move air through the 140 mm deep chassis. The unit carries 80 PLUS Gold certification with up to 85 % typical efficiency. Active PFC and a 16 ms minimum hold-up time help maintain stable output during normal operation.

Sustained load and excursion capability

The platform is rated for 235 % power excursion and 300 % GPU power excursion, allowing short bursts well above the 1000 W rating. A six-protection suite covers over-current, over-power, over-temperature, over-voltage, short-circuit and under-voltage conditions. The dedicated 12V-2x6 cable can supply 600 W directly to a compatible GPU.

Highlights

  • 1000 W output powers demanding builds
  • 80 PLUS Gold certification delivers up to 85 % efficiency
  • Full modular cabling keeps the case tidy
  • 120 mm FDB fan runs quietly under load
  • Native 12V-2x6 connector supports PCIe 5.1 graphics cards

Specifications

BrandRosewill
ModelVMG1000
TypeATX 3.1 Compatible
Maximum Power1000 W
Fans1 x 120mm FDBfan
PFCActive
Main Connector20+4Pin
+12V RailsSingle
SATA Power Connector6
CrossFireCrossFire Ready
Max PSU Length140 mm
ModularFull Modular
Hold-up Time16ms min.
EfficiencyUp to 85%
Energy-Efficient80 PLUS GOLD Certified
Over Voltage ProtectionYes
Overload ProtectionYes
Output+3.3V@18A, +5V@18A, [email protected] , [email protected] , +5VSB@3A
Connectors1 x 20+4-Pin Main Connector
2 x 4+4-Pin ATX12V / EPS12V Connector
3 x 6+2-Pin PCI-E Connector
1 x 12+4-Pin 12V-2x6 Connector
8 x 15-Pin SATA Connector
4 x 4-Pin Peripheral Connector
Shipping weight2.52 kg
Package size273 × 203 × 114 mm

Other versions of this model

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Questions about this item

How do I install the 12V-2x6 cable for my PCIe 5.1 graphics card, and which step do people miss?

Connect the 12+4-pin 12V-2x6 cable from the PSU directly to the GPU; the step often missed is seating the connector fully until the latch clicks, ensuring all 12 power pins and 4 sense pins make contact.

What maintenance or replacement will the 120mm FDB fan need later?

The fluid-dynamic-bearing fan is rated for long life; typical maintenance is occasional dust removal with compressed air, and replacement is only needed if bearing noise or speed drop appears after many years.

What limit shows up first during sustained 1000W loads?

The 16ms minimum hold-up time is the first hard limit; if AC input drops, output voltage is guaranteed for at least 16ms before falling out of regulation.

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