Seasonic FOCUS PLUS Gold 650W Power Supply Review

Author:Paul Johnson

Editor:Kyle Bennett

Date: Tuesday , July 24, 2018

The Seasonic FOCUS PLUS GOLD series has been nothing but a crowd pleaser. The 650 watt market is however jam packed with lots of competition when it comes to building PSUs. However when it comes to the high end of "Gold" mainstream market power supplies, Seasonic has shown its mid-efficiency PSUs are the competition to be feared.


In the power supply realm, when consumers think of quiet and efficient power supplies one of the first companies that comes to mind is Seasonic. Today, we are having a look at a brand new Seasonic unit that is part of their new FOCUS PLUS Gold lineup. In this review, we will specifically be looking at the 650W model (SSR-650FX) variously listed as the Focus+ Gold 650W, Focus+ Gold 650, Focus Plus 650 Gold, FOCUS Plus 650 Gold, FOCUS PLUS Gold 650W, etc.

Seasonic is one of the older companies producing consumer power supplies having been founded in 1975 and entering the PC power supply production market in 1980. During that more than 40 years as a company Seasonic has cultivated lines of power supplies that are today some of the standard bearers for efficiency and quiet computing. This focus, and its reputation for quality, has lead to an explosion in production as Seasonic can be found providing OEM services on various model lines for Antec, XFX, Corsair, PC Power and Cooling, and of course under its own Seasonic brand.

FOCUS.....FOCUS.....FOCUS.....Yep, It's 650W

Today's FOCUS PLUS Gold 650W is another unit in a long line of power supplies that we have seen from Seasonic's FOCUS PLUS series. Indeed, this unit is the third FOCUS PLUS Gold unit we have seen and, with the previous two being 750W and 850W models, this unit is the smallest in capacity that we have seen from this particular line. That said, those two previous examples were excellent products. So, today, with the FOCUS PLUS Gold 650W, we would expect that this unit will also be an excellent product. Perhaps the biggest question will be how this unit compares to other 650W products on the market. The question probably won't be if it will do a good job. However, before we get to far ahead of ourselves there, let's look at what Seasonic has to say about this unit:


Seasonic engineers have created a brand new product line based on advanced technology emanating from many years of intensive active research. The result of this development is the solid FOCUS+ Series, which implements modern design and shows outstanding electrical performance. This power supply is small and entirely modular, which will be hard to resist. It is available in 80 PLUS Platinum and Gold efficiency ratings.

Let's move on now and see what we can expect when a user purchases the FOCUS PLUS Gold 650W power supply in retail in terms of documentation, accessories, cable count, rail layout, output characteristics, and general build quality.