Cooler Master GX III 1050W ATX v3.0 PSU Review

Box & Bundle

The box generally provides good protection, thanks to its sturdy construction and foam material at its internals. On its front side, besides the PSU’s photo and model number, you also get the ATX v3.0 and PCIe 5.0 badges, which look outdated since newer revisions exist. Around the back, you will find more technical details.

Product Photos

The design makes it stand out from the crowd, but I disapprove of the restricted fan grille, which affects airflow and thus requires higher fan speeds. With a less restricted fan grille, noise output could be lower. The modular socket has thirteen (13x) sockets, the same number as the 1250W model, to deliver the PSU’s full power smoothly.

Cables

Modular Cables
Description Cable Count Connector Count (Total) Gauge In Cable Capacitors
ATX with 20+4 pin connector (610mm) 1 1 18-22AWG No
4+4 pin EPS12V (600mm) 1 1 18AWG No
8-pin EPS12V (600mm) 1 1 18AWG No
6+2 pin PCIe (550mm) 3 3 16-18AWG No
12+4 pin PCIe (650mm) (600W) 1 1 16-28AWG No
SATA (500mm+120mm+120mm+120mm) 3 12 18AWG No
4-pin Molex (500mm+120mm+120mm+120mm) 1 4 18AWG No
AC Power Cord (1360mm) – C13 coupler 1 1 18AWG

The cable configuration is the same as the 1250W model. The EPS cables should be longer than the ATX, with at least 650 mm in length. The gauges ideally should be thicker at 16 AWG on the ATX and EPS cables for lower voltage drops at high loads since this is a high-capacity PSU.

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2 thoughts on “Cooler Master GX III 1050W ATX v3.0 PSU Review

  1. It is Platinum in Cybenetics, while Gold in 80 PLUS. Cybenetics measures efficiency using a different approach than 80 PLUS, taking thousands of measurements instead of only 3-4.

    So the 1050 is Cybenetics Platinum, while the 1250 is Cybenetics Gold.

  2. Hi, confused on the review. In the first page it alludes to the 1250W version and also says it’s Platinum efficiency but specs and picture shows Gold.

    If its 1050W, ATX 3.0 and Platinum, it would be the perfect one for me so unsure on the details provided. Thanks.

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