Final Thoughts and Conclusions

The FOCUS PLUS Gold (FX) series is a refresh of Seasonic’s mainstream power supply lineup. The FOCUS PLUS and FOCUS series will eventually replace several of Seasonic’s popular G and S12G series power supplies. During our testing the FOCUS PLUS 650W Gold power supply delivered excellent voltage regulation, excellent AC ripple and noise suppression, and very good efficiency, easily meeting the 80 Plus Gold criteria even while operating on 120 VAC mains at elevated temperatures.  

The FOCUS PLUS 650W Gold power supply comes with a good assortment of all modular cables with a combination of sleeved and flat ribbon-style cables which includes four PCI-E 6+2 pin connectors for multi GPU support. The 120mm cooling fan uses a high-quality Fluid Dynamic Bearing (FDB) for long life and quiet operation. The power supply also incorporates Seasonic’s premium Hybrid Fan Control (S3FC) which allows semi fanless operation when engaged. High quality capacitors are used throughout and the FOCUS PLUS Gold (FX) series comes backed by a 10-year warranty!

The FOCUS PLUS Gold PSUs are currently available from (June 2017):

•    FOCUS PLUS Gold (FX) 550W: $79.90 USD
•    FOCUS PLUS Gold (FX) 650W: $89.90 USD
•    FOCUS PLUS Gold (FX) 750W: $99.90 USD
•    FOCUS PLUS Gold (FX) 850W: $109.90 USD

•    650W Continuous DC output at up to 50°C
•    80 PLUS Gold certified for high efficiency
•    Small footprint: chassis measures just 140mm (5.5”) deep
•    Excellent voltage regulation
•    Excellent AC ripple and noise suppression
•    Fully-modular cables
•    Multi-GPU Technology support
•    Quiet 120mm Fluid Dynamic Bearing (FDB) cooling fan
•    Hybrid Fan Control (S3FC) allows selecting semi fanless operation
•    Safety protections: OPP, OVP, UVP, OCP, OTP and SCP
•    10-Year warranty

•    Still looking…

An excellent power supply for the masses – highly recommended.

Seasonic FOCUS PLUS 650W Gold Power Supply

Our thanks to Seasonic for sending us the FOCUS PLUS 650W Gold PSU to review!

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