Before we test Seasonic Focus GX-550 power supply

Is the 550W Gold certified Seasonic Focus GX-550 more than enough for a basic gaming configuration? Short product tour before we use the PSU in a budget gaming build. 

Seasonic Focus GX-550 power supply
Seasonic Focus GX-550 - 80 Plus Gold certified modular PSU

We are building a very capable but yet quite affordable PC configuration this week and decided to share with you some impressions and detailed info about the components we are using. 

Today we will review the 80 Plus Gold certified fully-modular power supply Seasonic Focus GX-550.

First of all why we chose this PSU? Well to be honest we read lots of power supply reviews online and also consulted couple specialist about what to buy. At the end we liked the Focus GX-550 and another one from Bitefinix which was a bit cheaper and not modular. We decided to spend some more and get the Seasonic so it is going in our mid-range Ryzen 3rd generation gaming build. 

product packaging
Seasonic Focus GX-550 comes nicely packaged

what's in the box
Seasonic Focus GX-550 - other box contents


Seasonic Focus GX-550 - product specifications 

Here are some basic facts about this modular supply as provided by manufacturer:

Brand / modelSeasonic / Focus GX-550
80PLUS®Gold
Cybenetics Efficiency LevelTBA
Cybenetics Noise LevelTBA
Form FactorIntel ATX 12 V
Dimensions140 mm (L) x 150 mm (W) x 86 mm (H)
Fan InformationFan Size120 mm
Fan ControlS3FC - Fanless until 30 % load
Fan BearingFluid Dynamic Bearing
Life Expectancy50,000 hours at 40 °C, 15 % - 65 % RH
Cable InformationModularityFully Modular
Cable typeFlat black cables
Electrical FeaturesOperating Temperature0 - 50 °C (derating from 100 % to 80 % from 40 °C to 50 °C)
MTBF @ 25 °C, excl. fan100,000 hours
AC InputFull Range
ProtectionOPP, OVP, UVP, OCP, OTP, SCP
Safety and EnvironmentalSafety and EMCcTUVus, TUV, CB, CCC, BSMI, EAC, CE
Environmental ComplianceEnergy Star, RoHS, WEEE, ErP Lot 6, REACH
Warranty10 Years

One of the main drivers for us to get this Focus GX-550 power supply was related to reliability - offered with 10-year warranty gave us some additional reassurance that this is a good long-term purchase.
PSU specifications
Seasonic Focus GX-550 - product features and specs

Another important aspect was noise. We wanted something with quite operation. Thanks to its hybrid fan control this Seasonic power supply may remain completely silent most of the time on idle and medium loads. We already tested it for couple of seconds and even when the fan is working, the noise levels remain quite low.
Seasonic Focus GX-550 test
Seasonic Focus GX-550 fan is very quiet


Seasonic Focus GX-550 power supply - unboxing video

Now, here is a short product overview and unboxing of the Focus GX-550 modular power supply:

Seasonic Focus GX-550 - cables included

Cable
Cable typeConnector(s) per cableTotal length (mm)Number of cable(s) included
MB-610MB (24/20 pins)16101
CPU-650CPU (8/4 pins)16501
PCIe-750-2xPCIe (8/6 pins)27501
PCIe-750-1xPCIe (8/6 pins)17500
SATA-810-4x-90SATA48101
SATA-800-4x-180SATA48600
SATA-760-4x-90SATA47600
SATA-700-2x-90SATA27000
SATA-570-2x-180SATA25701
SATA-470-2x-180SATA24700
SATA-450-2x-180SATA24500
Molex-690-3xMolex36901
Molex-470-2xMolex24700
Molex-to-SATA-3-3-300Molex to SATA 3.3 Adapter23000
Molex-to-FDD-101Molex to FDD Adapter11011


Seasonic Focus GX-550 - product price

We haven't tested many power supplies these days but from our research we believe that the this might be one of the best 550 Watt modular Gold PSUs that you can buy under $100. Of course prices may vary on your location so expect price tags of around $80 all the way to $120. We bought ours on sale for around $85.

So, we have the GX-550 already in place in the Phanteks P300A case and we will be testing it next week. Stay tuned and don't forget to subscribe and find out more about the Seasonic Focus GX-550 performance, coupled with Ryzen 3600X and Asus DUAL RX 5500 XT 8GB. 

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