SeaSonic Electronics S12III Series 650W 80 Plus Bronze ATX Power Supply

BH #SESSR650GB3 • MFR #SSR-650GB3
SeaSonic Electronics S12III Series 650W 80 Plus Bronze ATX Power Supply
Key Features
  • 650W Single +12V Rail
  • 120mm Cooling Fan
  • Intel ATX12V
  • 4 x 8/6-Pin PCIe Connectors
The Seasonic S12III Series 650W 80 Plus Bronze ATX Power Supply is an efficient and durable unit designed to deliver consistent power to your system. Instead of removable, modular cables, this power supply has all of the cables and its connectors built-in. As for cooling, it's equipped with a 120mm fan, which works with the S²FC intelligent thermal circuit feature to balance noise and cooling performance. All the standard cables you'll need in a build are included such as the motherboard, CPU, PCIe, SATA, and 4-pin Molex/peripheral cables.
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SeaSonic Electronics SSR-650GB3 Overview

The Seasonic S12III Series 650W 80 Plus Bronze ATX Power Supply is an efficient and durable unit designed to deliver consistent power to your system. Instead of removable, modular cables, this power supply has all of the cables and its connectors built-in. As for cooling, it's equipped with a 120mm fan, which works with the S²FC intelligent thermal circuit feature to balance noise and cooling performance. All the standard cables you'll need in a build are included such as the motherboard, CPU, PCIe, SATA, and 4-pin Molex/peripheral cables.

80 Plus Bronze

This 80 Plus Bronze certification ensures at least 82%, 85%, and 82% power efficiency at 20%, 50%, and 100% load respectively.

S²FC - Smart & Silent Fan Control

The S²FC fan control system finds the optimal balance between cooling and noise to ensure quiet operation.

SeaSonic Electronics SSR-650GB3 Specs

Connectivity
Total Connectors1 x 20+4-Pin ATX Motherboard
1 x 4+4-Pin EPS CPU
4 x 6+2-Pin PCIe
6 x 15-Pin SATA
3 x 4-Pin Peripheral / Molex
PCIe Connector Distances21.7" / 550 mm
SATA Connector Distances15.8" / 400 mm
Peripheral Connector Distances17.7" / 450 mm
Floppy Connector Distances4.7" / 120 mm
ATX Connector Distance21.7" / 550 mm
EPS Connector Distances23.6" / 600 mm
Electrical
Total Wattage650 W
Number of +12 V Rails1
Combined Power for +12 V648 W
Max Load for +12 V54 A
Combined Power for +3.3/+5 V100 W
Max Load for +3.3 V20 A
Max Load for +5 V20 A
Max Power for +5 Vsb12.5 W
Max Load for +5 Vsb2.5 A
Max Power for -12 V3.6 W
Max Load for -12 V0.3 A
AC Input Power110 to 240 VAC, 50 / 60 Hz at 4 to 8 A
General
Efficiency Rating80 PLUS Bronze
Active Power Factor Correction99%
Efficiency82 to 85% at 20 to 100% Load
Cooling
Fan Size120 mm
Bearing TypeSleeve
Fan Life Expectancy30,000 Hours
Environmental
Operating Temperature104°F / 40°C
Physical
Form FactorATX
ComplianceATX 12 V, EPS 12 V
ProtectionOver-Power Protection, Over-Voltage Protection, Short-Circuit Protection, Under-Voltage Protection
CertificationsBSMI, C-Tick, CB, CCC, CE, ENERGY STAR, FCC, REACH, RoHS, TUV, WEEE, cTUVus, as per Manufacturer
Mean Time Between Failures (MTBF)100,000 Hours
Dimensions5.51 x 3.39 x 5.91" / 140 x 86 x 150 mm
Packaging Info
Package Weight4.94 lb
Box Dimensions (LxWxH)10.8 x 7.5 x 4.7"

SeaSonic Electronics SSR-650GB3 Reviews

Did the Job

By Joseph
Rated 3 out of 5
Date: 2022-06-16

Nothing spectacular to see here, it did the job though the specific CPU power cable (which complements the ATX 12-PIN power cable) was a little on the short side- but made it overall. TIP: If you have PC hardware related questions, do your research outside and avoid tapping the staff at B&H, who managed to incorrectly answer a simple product-related question I posed.

Solid Power Source Option

By Joshua
Rated 5 out of 5
Date: 2021-04-30

Works great in my recent budget build Pros: High wattage for future computer upgrades, fan is quiet Cons: Included cord is a bit short

Don't Buy

By Shawn
Rated 1 out of 5
Date: 2021-02-28

So, we've had it for a short period of time and it died. I used the paperclip trick in the 4th and 5th slot to see if it powers on and it didn't. Fortunately I had an old 850W PS laying around, checked it using the paper clip method to make sure it turns on and its fine. I don't recommend this power supply. I know it is low price and www.pcpartpicker.com has this on their budget builds, thats why I picked this one up, but find a different one. This one is not good quality.

Working as advertised

By Aaron
Rated 5 out of 5
Date: 2021-01-28

It looks like it will fit the load that I will put on it. If not I will just go up a notch. So far no problems! Computer is quiet and I enjoy this product!

What can I say ?

By Edmund
Rated 5 out of 5
Date: 2021-01-27

It's cool

Solid PSU

By Ronnie
Rated 5 out of 5
Date: 2021-01-19

Well built. The real test is to see how long it lasts. Hopefully it outlives its 5 year warranty. PSU don't seem to last these days like they used to. Again, I liked it enough to buy 2 and use them for 2 new builds. Its less money than a Corsair and appears to be just as good.

Silent as a Ninja

By Badreddine
Rated 5 out of 5
Date: 2021-08-07

Am not familliar with PSUs but this one seemed an obvious choice for its price, silent and provides enough juice for my PC to run.

The best Power

By David
Rated 5 out of 5
Date: 2021-07-05

Seasonic is a no brainer for most PC enthusiasts since it delivers reliable voltages on each rail, and the quality is superb. This price B&H has is unbeatable, and customer service is priority one!

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