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Rectangular black PSU with modular sockets and a 120mm fan grille

Rosewill

Rosewill CMG1000G5 1000 W ATX 3.0 3.1 80+ Gold Full Modular power supply

SKU CH-V8J3-SSHN8 MPN CMG1000G5

A 1000 W ATX 3.0 and 3.1 compatible power supply with 80 PLUS Gold efficiency, full modular cabling, a native 600 W PCIe 5.0 12V-2x6 connector and a compact 140 mm depth

  • TypeATX 3.0 Compatible / ATX 3.1 Compatible
  • Maximum Power1000 W
  • Fans1 x Silent 120mm FDB fan
  • PFCActive
  • Main Connector20+4Pin
  • +12V RailsSingle
  • ATX 3.0 and 3.1 ready for modern platforms
  • 80 PLUS Gold certified efficiency up to 92 percent
  • Native 12VHPWR connector delivers 600 W to PCIe 5.0 GPUs
  • Full modular cabling keeps the build tidy
  • Compact 140 mm depth fits small cases

ATX 3.0 and 3.1 ready 1000 W unit

This full-modular power supply delivers 1000 W of continuous output and meets Intel ATX 3.0 and 3.1 specifications. It carries 80 PLUS Gold certification with up to 92 percent efficiency and uses a single +12 V rail design. A 120 mm FDB fan provides cooling in a compact 140 mm deep chassis.

Native 12V-2x6 cable for modern GPUs

The bundle includes a native 12+4 pin 12V-2x6 cable rated for 600 W PCIe 5.0 power excursions up to 235 percent and GPU excursions up to 300 percent. Four 6+2 pin PCIe connectors, eight SATA connectors, two EPS 4+4 pin cables and four peripheral cables are also supplied. Full modularity lets you install only the cables your build requires.

Verify case depth and GPU power needs

Confirm your case can accommodate a 140 mm deep power supply before ordering. Check that your graphics card uses a 12V-2x6 or 12VHPWR connector to leverage the 600 W native cable, or that it can be powered by the four 6+2 pin connectors. Ensure the single +12 V rail design matches your system's power distribution requirements.

Highlights

  • ATX 3.0 and 3.1 ready for modern platforms
  • 80 PLUS Gold certified efficiency up to 92 percent
  • Native 12VHPWR connector delivers 600 W to PCIe 5.0 GPUs
  • Full modular cabling keeps the build tidy
  • Compact 140 mm depth fits small cases

Specifications

BrandRosewill
SeriesCMG
ModelCMG1000G5
TypeATX 3.0 Compatible / ATX 3.1 Compatible
Maximum Power1000 W
Fans1 x Silent 120mm FDB fan
PFCActive
Main Connector20+4Pin
+12V RailsSingle
PCI-Express Connector4 x 6+2-Pin & 1x 12+4-Pin
SATA Power Connector8
SLISLI Ready
CrossFireCrossFire Ready
Max PSU Length140 mm
ModularFull Modular
Hold-up Time16ms min.
EfficiencyUp to 92%
Energy-Efficient80 PLUS GOLD Certified
Over Voltage ProtectionYes
Overload ProtectionYes
Output+3.3V@25A, +5V@25A, [email protected] , [email protected] , +5VSB@3A
Connectors1 x 20+4-Pin Main Connector
2 x 4+4-Pin ATX12V / EPS12V Connector
4 x 6+2-Pin PCI-E Connector
1 x 12+4-Pin 12VHPWR Connector
8 x 15-Pin SATA Connector
4 x 4-Pin Peripheral Connector
FeaturesNewest PCIe 5.0 and ATX 3.0 Compatible
12+4-Pin 12VHPWR Connector
80 PLUS GOLD Certified
Compact 140mm size
1000 Watts Max Power
Single strong 12V rail - ideal for Gaming system
1 x Silent 120mm FDB Fan
Active-PFC with auto AC-input voltage adjustment (100 - 240V)
Over Temperature Protection / Over Current Protection / Over Voltage Protection / Power Protection, Under Voltage Protection, and Short Circuit Protection provide maximum safety to your critical system components
Safety & EMI Approval: cTUVus, FCC
Shipping weight2.85 kg
Package size290 × 229 × 117 mm

Questions about this item

How often should the 120 mm FDB fan be cleaned or replaced?

The fluid-dynamic bearing fan is rated for long life; clean dust from the intake every few months and replace only if bearing noise appears.

What limits output first during continuous 1000 W loads?

The single 12 V rail and 16 ms hold-up time define the sustained ceiling; protection circuits engage if temperature or current exceed design limits.

How loud and hot does the unit get when running all day?

The silent 120 mm FDB fan keeps noise low at typical loads; 80 PLUS Gold efficiency up to 92 % reduces waste heat during extended operation.

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