Wattage exceeds total system draw by 20-30% headroom
80+ Gold or higher for efficiency
Modular cables reduce clutter in your case
💰 Mid-range builds: 650-750W. High-end with RTX 4080+: 850W-1000W+
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ProductWattsRatingModularColorValuePrice
550W GD550S ATX Gaming PC Power Supply 80+ Bronze PSU Non-Modular Power Supply Flat Black Cables
Ptcliss★★★★4
550W
Bronze
Non
Black
—
$49.90
Specifications
asinB0BR5WTML2
reviews22
Model #GD550S
Weight3.5 lbs
Watts550W
RatingBronze
ColorBlack
value69
Form FactorATX
ModularNon
ATX 3.0No
Fan Size120mm
RGBNo
Fans1
Customer Reviews★★★★★4.0 · 5 reviews
★★★★★Very Nice Power Supply
Works as expected and was a breeze to install. Very quiet and so far so good on first day.
NJKID001 · 2023-12-20 · via amazon
★★★★★Good power supply for moderately power hungry systems. Not for multiple spinning drives.
This is a 550W ATX PSU. It has a 24 pin power connector, 8 pin CPU power connector that can be separated into two 4 pin connectors, and two 8 pin PCIe connectors connected in series (rather than two separate connectors emanating from the power supply box). It has 4 SSD power connectors and 3 IDE power connectors which are in series with the SSD connectors. It is not modular; none of these is removable from the PSU case. The wires to the motherboard and GPU are 18ga, doubled up (roughly 15ga equivalent) for some of the motherboard and GPU pins. The SSD/IDE power cables are only 20ga, which seems a bit thin. The PSU is a bit light in weight, but otherwise feels solid enough. There are no rough edges, and it does not look at all cheap. This PSU is quiet with low loads, and I could only hear it by disconnecting the stock CPU fan (briefly) and putting my ear up to it. With heavy loads, it became audible as a white noise. There was no whine. I again had to temporarily disconnect the fan of my CPU to hear it. I tested this power supply with an MSI X58-Pro ATX logic board equipped with an i7-970 CPU, which has a TDP of 130W, and an Nvidia GTX-1080 GPU which takes a single 8 pin PCIe power connector. Nvidia recommends at least a 500W PSU for the GTX-1080. Under Windows 10, I ran Prime95 set to use maximum CPU power and produce maximum heat, and simultaneously ran Unigine Heaven to test the GPU. This seemed like a good test of a gaming power supply. As of this moment, the CPU has been operating at 100% and the GPU at 90% for three hours. There have been no crashes. The wires to the motherboard and GPU are very warm, but not hot. The connectors themselves are warm. The wires to the CPU are slightly warm. The wires to the SSD/IDE cables are room temperature. All voltage lines, as reported by CPUID HWMonitor, have remained within the expected +/-5%. This PSU did well powering my power hungry (130W) i7-970 CPU and GTX-1080 GPU. If you are looking for a budget PSU to power a mid-range system with an RTX-4060 GPU or below, this PSU should be a good choice. My only reservation has to do with the thin IDE/SATA cables; I can't recommend this power supply to those who have multiple spinning hard drives or peripherals that require supplementary power from an IDE connector. I have no other reservations.
S. Pupp · 2025-04-20 · via amazon
★★★★★Good power supply for gaming
I bought this power supply for my son’s gaming PC build. He needed something reliable but affordable, and this one fit the bill. It’s a 550W non-modular ATX unit with an 80 Plus Bronze rating, which means it runs at about 85% efficiency under normal use. The 120mm fan is quiet, and so far it’s kept his system running cool without any problems. The cables aren’t modular, so they’re all attached, but they come in a flat black design that makes them easier to route and keep out of the way. It has the connections he needed: a 24-pin, two 4+4 CPU connectors, a PCI-E 6+2 pin for his graphics card, plus SATA and Molex plugs for drives and accessories. I also liked that it comes with built-in protections for things like over-voltage, short circuit, and over-power, which gave me some peace of mind. For the price, it works well for a mid-range setup, and my son is happy with how it performs in his PC.
Amazon Customer · 2025-08-21 · via amazon
★★★★★Perfect psu for your retro computers and lower end builds
So far i been running this psu for 24/7 for 7 days now with no issues at all and i been non stop stress testing it with OCCT which is a stress test software while running a cpu stress test and video card stress test and also having my volt meter connected to the 4pin molex for the 12volt rail and 5volt rail 5volt does not drop on idle or load and 12volt reads 12.58volts at idle and when putting a stress load on it it drops down to 12.38volts so really not much of a drop which more so within spec for computer power supplies which i shown the values in a photo, And keep in mind this is on my older dell xps 420 with a core 2 duo and 8gb of ram and a rx580 8gb and a ssd and a hard drive so really not something that needs alot of power at all but i like these type of power supplies for older computers which they do great always. The build quality is not bad at all and it had more weight to it than i thought it would've and the yellow and black old school cables is not a issue for me cause the dell does not have a side panel so they can't be seen and the psu i received runs quiet and i can't even hear it over the 2 dell oem fans and the rx580 2 fans. I really don't have any cons to say about this psu for the 7 days i had it in the pc and it's been running 24/7 with no issues to be seen yet more so i wouldn't run this on a pc that is worth alot or anything with really high powered gpus like my main gaming desktops but for older computers that you like to get back up and running again for retro stuff this psu does do the job great for my older dell with no issues at all so i do like this psu so far and gets a thumbs up for me👍
AmazonReviewer · 2025-04-22 · via amazon
★★★★★Quality control issues. Couldn’t maintain 5V bus voltage.
I was looking to update my power supply in my home server(old gaming pc) because my voltage was drooping on the bus. I figured a 80+bronze would be able to keep up. This one had the same voltage droop at my front usb port. It also had a horrible grind when the fan turned on during a stress test(see video). Not great. I wouldn’t trust it to keep the power supply cool if it already started to grind on startup. Removed and will recycle as I won’t risk it. Took long enough to swap it out and another back in that I’m disappointed. The colored cables are annoying. I suppose you get what you pay for at this level with an off brand.