|Item model number||SSR-550RM|
|Item Weight||5 pounds|
|Product Dimensions||6.3 x 3.4 x 5.9 inches|
|Item Dimensions L x W x H||6.3 x 3.39 x 5.9 inches|
Other Sellers on Amazon
+ $7.49 shipping
+ Free Shipping
+ $8.47 shipping
SeaSonic G Series 550-Watt ATX12V/EPS12V SLI Ready CrossFire Ready 80 PLUS GOLD Certified Modular Active PFC Power Supply SSR-550RM
|Price:||$94.63 & FREE Shipping. Details|
- Enter your model number to make sure this fits.
- ATX12V / EPS12V
- 80 PLUS GOLD Certified
- 100 - 240V (Max. 90 - 264V)
- Maximum Power: 550W
Frequently Bought Together
Customers Who Bought This Item Also Bought
Top Customer Reviews
Fifteen years ago, most power supplies were about 70% efficient. For a 100W load, they would draw about 140W from the wall. Not anymore. We now have five major PSU ratings: 80 Plus and 80 Plus Bronze, Silver, Gold, and Platinum. These correspond to half-load efficiencies of 80%, 85%, 88%, 90%, and 92%. Efficiencies at 1/5 and 4/5 load are about 4% less than half-load.
This is an 80-Plus Gold unit capable of 90% efficiency. Relative to a Bronze unit, for a 24/7/365 system draw of 100W, you could expect to save about $6 a year in power costs at $0.12/kWH. Efficiency has other benefits: namely, every watt that isn't going the system is dissipated as heat. Less efficient units require a bigger or faster fan, which makes more noise.
JonnyGuru and XBitLabs have given this model high marks for load regulation and current ripple. It's a solid design that's par for the course for Seasonic.
Most power supplies have two general characteristics: they're most efficient at half-load, and half-load is when their fans start to ramp up. If you want a silent PSU, your maximum load should be no more than 60% of rated capacity.Read more ›
I've been building PCs for well over 10 years, and have always found funny how some Builders cram the highest powered PSU their budget allows into their PC. That's not how it works.
You need to know approximately what's the peak power of the PC you're building. Reason? Efficiency. Efficiency suffers the most when a PC is pulling a small amount of power (eg: idle, web surfing, music, youtoubing, office, etc). The lower the percentage of load you're pulling from the PSU from it's total, the less efficient it is, the more money you're not saving on the electricity bill. That's why office PC usually have a 250W-300W PSU.
Secondly: don't bother with 80Plus Platinum/Titanium PSUs just yet. It's 2% and 4% more efficient than Gold at 50% load, but usually come with a hefty price premium over Gold certified PSUs. It would take a lot more years to get the Return on the extra investment, than what you're probablly going to keep the PSU.
With that off the table, let's talk about the PSU. This device is powering an Intel Core i5 based system, overclocked to 4.0GHz, 16GB of RAM, one SSD and one HDD, 5 fans and a GTX760. It has power to spare, while being EXTREMELY quite, and exhaust air is relatively cool compared to older PSUs when gaming.
The cables are flat, which are a godsend for cable management within the case, and a pouch for those extra modular cables you won;t be needing. Comes with a rather large sticker.
Why Seasonic and not higher named (Seasonic is not small by all means) brands like Corsair, Antec eVGA or similar? We can't generalize, but keep in mind that SeaSonic is one of the OEMs for many of the PSUs from those brands. They rebadge, relabel and rename the units, and sell them usually more expensive, adding little to no value. Save yourself a couple of bucks here.
This thing is quiet! you'd only really hear something if you had your ear right next to it.
Ive become a fan of SeaSonic.
I bought one of these as a replacement for an old PSU that died. I received the first one and installed it - nothing. I followed their troubleshooting guide and Jump Start procedures - nothing.
I RMA'd the bad PSU and after eventually got a new one via UPS. This was not a fast process.
Silly me took the new one and installed it and - again nothing. I pulled it out and went through Jump Start and troubleshooting again - nothing.
Welcome to bad product and RMA hell.
The only brand I will buy when it comes to power supplies.
My only complaint is the 8pin CPU power cable is too short in cases that are designed for the wiring to be hidden behind motherboard - they need to add about an inch. You can buy extensions, but I shouldn't have to in cases that are mid atx.
Most Recent Customer Reviews
I had it for 5 weeks then randomly stopped working.. I had my computer on a wooden desk to make sure it had air the whole 5 weeks and it just stopped working had to buy a new... Read morePublished 8 days ago by Amazon Customer
Truly a great value for a semi-modular, gold plus certified PSU. I bought this specifically for a quiet build that would be running all the time, and it has not disappointed. Read morePublished 2 months ago by Randle Finch
Good quality PSU, use with a Nvidia Geforce GTX 970 without a problem.Published 2 months ago by Danny E.
Works as advertised. I bought one in slightly used condition and the seller included all cables neatly bundled and it has no noticeable defects. Read morePublished 2 months ago by William Tardio
Quality construction and nice goodies in the box. Very happy with its performance.Published 2 months ago by HoosierGirl
I used this PSU for the computer I built last year. Works like a charm.Published 2 months ago by Arthur M.C
Great power supply everything you need to upgrade or replace a bad power supply.Published 2 months ago by rgm