Does this PSU work with AMD Radeon GPUs?

I cannot confirm that this PSU will be adequate for GPU in question, I do not have the AMD Radeon installed for this unit

What is the power output of the PSU|RW|CMG5 1200W ATX|CMG1200G5?

The power output of the PSU is 1200 Watts.

be quiet! Pure Power 13 M 850W ATX 3.1 Power Supply | 80 Plus Gold Efficiency | PCIe 5.1 | Modular | BP027US

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Main image of Rosewill CMG5 1200W, ATX 3.0 & 3.1 Compatible, 80+ Gold 1200W Full Modular Gaming Power Supply, PCIe 5.0 600W 12V-2x6 Connector, 100% Japanese Electrolytic Capacitors, 120mm FDB Fans - CMG1200G5

Alt view image 2 of 9 - Rosewill CMG5 1200W, ATX 3.0 & 3.1 Compatible, 80+ Gold 1200W Full Modular Gaming Power Supply, PCIe 5.0 600W 12V-2x6 Connector, 100% Japanese Electrolytic Capacitors, 120mm FDB Fans - CMG1200G5

Alt view image 3 of 9 - Rosewill CMG5 1200W, ATX 3.0 & 3.1 Compatible, 80+ Gold 1200W Full Modular Gaming Power Supply, PCIe 5.0 600W 12V-2x6 Connector, 100% Japanese Electrolytic Capacitors, 120mm FDB Fans - CMG1200G5

Alt view image 4 of 9 - Rosewill CMG5 1200W, ATX 3.0 & 3.1 Compatible, 80+ Gold 1200W Full Modular Gaming Power Supply, PCIe 5.0 600W 12V-2x6 Connector, 100% Japanese Electrolytic Capacitors, 120mm FDB Fans - CMG1200G5

Alt view image 5 of 9 - Rosewill CMG5 1200W, ATX 3.0 & 3.1 Compatible, 80+ Gold 1200W Full Modular Gaming Power Supply, PCIe 5.0 600W 12V-2x6 Connector, 100% Japanese Electrolytic Capacitors, 120mm FDB Fans - CMG1200G5

Alt view image 6 of 9 - Rosewill CMG5 1200W, ATX 3.0 & 3.1 Compatible, 80+ Gold 1200W Full Modular Gaming Power Supply, PCIe 5.0 600W 12V-2x6 Connector, 100% Japanese Electrolytic Capacitors, 120mm FDB Fans - CMG1200G5

Alt view image 7 of 9 - Rosewill CMG5 1200W, ATX 3.0 & 3.1 Compatible, 80+ Gold 1200W Full Modular Gaming Power Supply, PCIe 5.0 600W 12V-2x6 Connector, 100% Japanese Electrolytic Capacitors, 120mm FDB Fans - CMG1200G5

Alt view image 8 of 9 - Rosewill CMG5 1200W, ATX 3.0 & 3.1 Compatible, 80+ Gold 1200W Full Modular Gaming Power Supply, PCIe 5.0 600W 12V-2x6 Connector, 100% Japanese Electrolytic Capacitors, 120mm FDB Fans - CMG1200G5

Alt view image 9 of 9 - Rosewill CMG5 1200W, ATX 3.0 & 3.1 Compatible, 80+ Gold 1200W Full Modular Gaming Power Supply, PCIe 5.0 600W 12V-2x6 Connector, 100% Japanese Electrolytic Capacitors, 120mm FDB Fans - CMG1200G5

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Rosewill CMG5 1200W, ATX 3.0 & 3.1 Compatible, 80+ Gold 1200W Full Modular Gaming Power Supply, PCIe 5.0 600W 12V-2x6 Connector, 100% Japanese Electrolytic Capacitors, 120mm FDB Fans - CMG1200G5

Name: Rosewill CMG5 1200W, ATX 3.0 & 3.1 Compatible, 80+ Gold 1200W Full Modular Gaming Power Supply, PCIe 5.0 600W 12V-2x6 Connector, 100% Japanese Electrolytic Capacitors, 120mm FDB Fans - CMG1200G5
Uploaded: 2026-11-11
Description: Rosewill CMG5 1200W, ATX 3.0 & 3.1 Compatible, 80+ Gold 1200W Full Modular Gaming Power Supply, PCIe 5.0 600W 12V-2x6 Connector, 100% Japanese Electrolytic Capacitors, 120mm FDB Fans - CMG1200G5

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Options: CMG ATX 3.1 (1200W)

CMG ATX 3.1 (850W)
CMG ATX 3.1 (1000W)
CMG ATX 3.1 (1200W)

Intel ATX 3.0 & 3.1 Ready
Fully Modular 80 PLUS® Gold Certified
Native 600W PCIe 5.0 / Gen 5 12+4 Pin 12V-2x6 Cable
Up to 235% Power Excursion & 300% GPU Power Excursion

🔥Don't forget your OS, we have Windows 11 OEM, Download and USB versions available

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Overview

Specs

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CMG1200G5 1200 Watt Power Supply

Full ATX 3.0 Compatibility

ATX 12V V3.0 ready, comes with 600W 16-pin 12VHPWR cable.

Fully Modular Design

Customize cable arrangement with fully modular power supply design to avoid clutter and reduce dust buildup, maximizing airflow and showcasing the aesthetics of your build.

80 Plus Gold Certified

Delivers 90% or more efficiency under typical load conditions. Prevents the waste of power and unnecessary additional heat.

Quiet 120mm FDB Fan

Fluid Dynamic Bearing fan produces low noise while expanding the lifespan of your power supply.

ECO Mode

Cooling fan switches off when at low loads to minimize noise and achieve an ultra-quiet operation.

100% Japanese Capacitors

Japanese Capacitors provide reliability and a longer lifespan to your power supply.

Safety Protections

Active Power Factor Correction, Over Voltage, Under Voltage, Over Current, Short Circuit, Over Power, and Over Temperature Protection.

Best Seller Ranking	#93 in Power Supplies

General
Brand	Rosewill
Series	CMG
Model	CMG1200G5

Details
Type	ATX 3.0 Compatible / ATX 3.1 Compatible
Maximum Power	1200 W
Fans	1 x Silent 120mm FDB fan
PFC	Active
Main Connector	20+4Pin
+12V Rails	Single
PCI-Express Connector	4 x 6+2-Pin & 1x 12+4-Pin
SATA Power Connector	8
SLI	SLI Ready
CrossFire	CrossFire Ready
Max PSU Length	140 mm
Modular	Full Modular
Hold-up Time	16ms min.
Efficiency	Up to 92%
Energy-Efficient	80 PLUS GOLD Certified
Over Voltage Protection	Yes
Overload Protection	Yes
Input Voltage	100 - 240 V
Input Frequency Range	50/60 Hz
Output	+3.3V@25A, +5V@25A, +12V@100A, [email protected], +5VSB@3A
Connectors	1 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

Features
Features	Newest PCIe 5.0 and ATX 3.0 Compatible 12+4-Pin 12VHPWR Connector 80 PLUS GOLD Certified Compact 140mm size 1200 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

Dimension & Weight
Dimensions	3.39" x 5.91" x 5.51"

Additional Information
First Listed on Newegg	April 26, 2023

Warranty & Returns

Warranty, Returns, And Additional Information

Return Policies

We want to ensure your holiday shopping this year is hassle-free. That’s why we’re automatically extending our return policies on almost every product! For purchases placed between November 1st, 2026 and December 31, 2026 you will have until January 31, 2027 to return your product.

Return for refund until: January 31, 2027
Return for replacement until: January 31, 2027
This item is covered by Newegg.com's Extended Holiday Return Policy.
Read full return policy for details.

Manufacturer Contact Info

The Rosewill CMG1200G5 is a fully modular 1200W 80 PLUS Gold power supply for high-performance gaming PCs and other systems that need substantial GPU power, with ATX 3.0/3.1 compatibility and a native 600W 12+4-pin PCIe 5.0 cable.

Recommended For

DIY builders assembling a high-draw gaming or workstation PC who need 1200W capacity and a native PCIe 5.x 16-pin GPU power connection.
Builders comparing discounted 1200W power supplies who value full modular cabling and modern GPU connectivity, and are comfortable weighing those features against a shorter warranty and limited independent testing.
PC builders planning substantial future GPU or component upgrades who want extra PSU capacity available without replacing the power supply.

Spec Summary

Attribute	Value
Best For	High-power desktop and gaming builds requiring up to 1200 W and support for PCIe graphics cards, including a 12+4-pin GPU connector
Power Capacity And Efficiency	1200 W maximum output with 80 PLUS Gold certification and efficiency up to 92%
GPU And Peripheral Connections	Four 6+2-pin PCIe connectors, one 12+4-pin GPU connector, eight SATA power connectors, four peripheral connectors, two 4+4-pin CPU connectors, and one 20+4-pin main connector
Modular Design	Fully modular cabling for a desktop power-supply installation
Input And Electrical Output	100–240 V AC input at 50/60 Hz, active PFC, and a single +12 V rail rated at 100 A; outputs include +3.3 V, +5 V, −12 V, and +5 VSB rails
Cooling	One 120 mm fluid dynamic bearing fan with air cooling
Protection And Hold-Up	Includes over-voltage, overload, over-temperature, over-current, under-voltage, and short-circuit protection; minimum 16 ms hold-up time
Physical Specifications	140 mm maximum length; 3.39 × 5.91 × 5.51 in; 6.3 lb; black
Model Identifiers	Rosewill CMG series, model CMG1200G5; safety and EMI approvals include cTUVus and FCC

Best Sellers

Rosewill CMG5 1200W, ATX 3.0 & 3.1 Compatible, 80+ Gold 1200W Full Modular Gaming Power Supply, PCIe 5.0 600W 12V-2x6 Connector, 100% Japanese Electrolytic Capacitors, 120mm FDB Fans - CMG1200G5

Learn more about the Rosewill CMG1200G5

Customer Reviews of the Rosewill CMG1200G5

Warranty & Returns

Warranty, Returns, And Additional Information

Return Policies

Manufacturer Contact Info

Recommended For

Spec Summary

Item#: N82E16817182454

Best Sellers

Rosewill CMG5 1200W, ATX 3.0 & 3.1 Compatible, 80+ Gold 1200W Full Modular Gaming Power Supply, PCIe 5.0 600W 12V-2x6 Connector, 100% Japanese Electrolytic Capacitors, 120mm FDB Fans - CMG1200G5

Learn more about the Rosewill CMG1200G5

Customer Reviews of the Rosewill CMG1200G5

Warranty & Returns

Warranty, Returns, And Additional Information

Return Policies

Manufacturer Contact Info

Recommended For

Spec Summary