Seasonic CORE GX-550, 550W 80+ Gold Full-Modular, Fan Control in Silent and Cooling Mode, Perfect Power Supply for Gaming and Various Application, SSR-550LX
FULL MODULAR: Use only the cables you need to reduce clutter to maximize airflow for a better ventilated system.
80 PLUS GOLD: Less energy gets wasted during power conversion; Cut down your electricity usage and be Eco-Friendly.
SMART and SILENT FAN CONTROL: Seasonic Smart and Silent Fan Control technology(S2FC) optimizes the fan speed according to the needs of the system to create a more silent and comfortable experience.
7 YEAR WORRY-FREE WARRANTY: Our commitment to superior quality.
Overview
Specs
Reviews
Learn more about the SeaSonic USA CORE GX-550
General
Brand
SeaSonic
Series
CORE Series
Model
CORE GX-550
Details
Type
ATX12V
Maximum Power
550 W
Fans
120mm Sleeve Bearing Fan
Main Connector
20+4Pin
+12V Rails
Single
PCI-Express Connector
2 x 6+2-Pin
SATA Power Connector
6
Modular
Full Modular
Energy-Efficient
80 PLUS GOLD Certified
Protection
OPP, OVP, OCP, OTP, SCP, UVP
Input Voltage
100 - 240 V
Input Frequency Range
50/60 Hz
Input Current
8 - 4 A
Output
+3.3V@20A, +5V@20A, +12V@45A, -12V@0.3A, +5VSB@3A
MTBF
>100,000 Hours
Approvals
cTUVus, TUV, CB, CCC, BSMI, CE, FCC Energy Star, RoHS, WEEE, ErP Lot 6, REACH
Max PSU Length
140 mm
Connectors
1 x Main Power (24P / 20P) 1 x EPS 12V / ATX 12V (8P / 4P) 2 x PCI-E (8P / 6P) 6 x SATA 3 x Molex
Cable Spec
20+4Pin MB: One cable (610mm) 4+4Pin CPU: One cable (650mm) 2 x PCI-E 6+2Pin: One cable (750mm) 4 x SATA: One cable (810mm) 2 x SATA: One cable (450mm) 3 x Molex: One cable (690mm)
Features
Features
High Efficiency, 80 PLUS Gold Certified Fully Modular Cabling Design Compact Size (140 mm) DC to DC converter design Seasonic Smart and Silent Fan Control (S2FC) Highly Reliable Japanese 105 °C Aluminum Electrolytic Capacitors Tight Voltage Regulation (12 V, 5 V and 3.3 V) [+/- 3%]
Pros: Nearly silent, performs flawlessly, great cable management.
Overall Review: Used this on a Ryzen 2700, 16gb RAM, Nvidia GT1030 system, so not exactly taxing this PSU by any means. But it's rock solid and nearly silent. Even under full load throwing everything I can at the GPU and CPU, the PSU can't be heard over the other system fans.
Cables are nice, though I prefer standard colored cables for troubleshooting, but it appears most people disagree with me, otherwise PSU manufacturers wouldn't all be switching to black cables :)
They throw in a couple goodies, plenty of cable ties and a 24-pin header that turns the power supply on if you need to start it without a motherboard attached (the same thing can be accomplished by jumping the green wire on the 24-pin to ground).
Great affordable power supply is my take on it. Seasonic has always delivered a quality product in my experience.
Overall Review: I got this knowing that I had heard a lot of good things about the brand and thought why not. I have an EVGA psu in my system and am not a fan of the cables with it. The cables that came with this psu are great, nice and flat and plenty long enough. All in all very happy with the product and for the price it was amazing.
Anonymous
Ownership: 1 week to 1 month
Verified Owner
Nice upgrade over 80+ White one11/12/2021 11:21:10 AM
Pros: Verified better efficiency than my old 80+ PSU
Cons: New lacquer smell is quite strong
SATA cable could be an inch or two longer
Overall Review: I bought it mainly because of the price - I wanted to see if a Gold PSU from a reputable brand is really more efficient than a 80+ white one (from a reputable brand as well) and I didn't want to spend much on that experiment. So far I'm thrilled - just replacing the power supply dropped wattage measured at the outlet from 280W to 255W. I did not expect that must difference.
Pros: Modular design. I don't have unnessisary cables floping around inside the case
Cons: Non so far
Overall Review: I got this on sale and would say it was worth it. Great price for a solid PSU
Anonymous
Ownership: 1 week to 1 month
Verified Owner
Very nice PSU3/18/2021 7:45:00 AM
Pros: Nice Quality cable.
Compact size PSU.
Cables are long enough to fit your case with good cable management.
Not expensive.
Cons: Main power cable 24pin is confusing which side in the PSU & MB and I hope it's sided shaped not rounded.
Overall Review: Very good quality and recommended to buy without thinking
Anonymous
Ownership: 1 month to 1 year
Verified Owner
Worked great in older PC1/31/2022 3:50:55 PM
Pros: quiet
80+ gold
semi modular
Cons: less expensive than other options
Overall Review: Used in an old gaming rig where the original PSU fan was starting to go out. Swapping the PSU only took a few minutes and using the semi-modular cables worked great to only hook up cables that were required.
It's been installed for several months and operates silently (or at least I don't hear it) and hasn't had any problems.
Pros: Good price point for a good product. The consumer has a nice bargain.
Cons: no cons
Overall Review: Yes.I recommend. If you know enough about computers to be shopping for power supplies....this one speaks for itself in the specs and the warrantee,
Pros: Nearly silent, performs flawlessly, great cable management.
Overall Review: Used this on a Ryzen 2700, 16gb RAM, Nvidia GT1030 system, so not exactly taxing this PSU by any means. But it's rock solid and nearly silent. Even under full load throwing everything I can at the GPU and CPU, the PSU can't be heard over the other system fans. Cables are nice, though I prefer standard colored cables for troubleshooting, but it appears most people disagree with me, otherwise PSU manufacturers wouldn't all be switching to black cables :) They throw in a couple goodies, plenty of cable ties and a 24-pin header that turns the power supply on if you need to start it without a motherboard attached (the same thing can be accomplished by jumping the green wire on the 24-pin to ground). Great affordable power supply is my take on it. Seasonic has always delivered a quality product in my experience.