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

The power output of the PSU is 1200 Watts.

Does this 1200 watt PS work with older win7 ATX PS builds and why no new reviews?

The Rosewill CMG5 1200W power supply is ATX 3.0 and ATX12V compatible, which means it should work with older ATX builds, including those running Windows 7, as long as the hardware components are compatible with the provided connectors. Regarding the absence of new reviews, this information is not available in the product details provided.

Questions & Answers: Rosewill CMG5 1200W, ATX 3.0 & 3.1 Compatible, 80+ Gold 1200W Full Modular 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 Power Supply, PCIe 5.0 600W 12V-2x6 Connector, 100% Japanese Electrolytic Capacitors, 120mm FDB Fans - CMG1200G5
Uploaded: 2025-11-14
Description: Rosewill CMG5 1200W, ATX 3.0 & 3.1 Compatible, 80+ Gold 1200W Full Modular 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 Power Supply, PCIe 5.0 600W 12V-2x6 Connector, 100% Japanese Electrolytic Capacitors, 120mm FDB Fans - CMG1200G5

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

$109^.99 –