Features & Specifications
Seasonic rocked the boat with its Prime PSUs. Aside from ultra-high performance, they also come with a stunning 12-year warranty. This alone shows the level of confidence Seasonic has in its platform.
A step down from the Primes, Seasonic also has its affordable Focus family, available at a number of different capacity points. Today's review covers the Focus Plus Gold series' flagship, the SSR-850FX. We already reviewed the lower-end SSR-750FX and came to a positive conclusion, so we're expecting the same solid performance (if not better) from the 850W version.
Seasonic uses a new platform for its Focus family, built for performance on a budget. In other words, it's more value-oriented than the Prime models, which achieve better results, but also cost a lot more. Seasonic goes a step further and pushes its competitors with aggressive pricing on the Focus PSUs (the SSR-850FX lists for ~$110 and sells for roughly $100). That's a fairly new approach for Seasonic. Up until this family's introduction, the company was known for loftier price tags to match its solid benchmark numbers. We're glad to see that correlation coming to an end.
At this point, we don't know if Seasonic will offer this platform to other brands. More certain, though, is that the company wants to establish a retail presence and not rely so heavily on the OEM market. That means spending more money on support and putting in an effort to expand distribution. Should Seasonic maintain the SSR-850FX's current price, EVGA and Corsair will almost certainly need to respond. After all, at the time of this review, the Focus series' flagship sells at a similar level as EVGA's 850 B3, occupying a much higher performance category and doubling its warranty period.
Besides Gold-rated efficiency on the 80 PLUS scale, this PSU also carries Cybenetics' ETA-A and LAMBDA-S++ ratings. All necessary protection features are included, and cooling is handled by a 120mm FDB fan supported by a selectable semi-passive mode.
Finally, the PSU's dimensions are very compact thanks to its limited 140mm depth.
|Total Max. Power (W)||850|
The minor rails only offer 100W maximum combined power, which looks low compared to other 850W PSUs. Don't worry, though: all modern PCs mainly use the +12V rail, and this PSU delivers up to 840W on that one. The 5VSB rail does have enough capacity, and its OCP is actually much higher than 3A.
Cables And Connectors
|Description||Cable Count||Connector Count (Total)||Gauge|
|ATX connector 20+4 pin (610mm)||1||1||18-22AWG|
|4+4 pin EPS12V (655mm)||2||2||18AWG|
|6+2 pin PCIe (680mm+80mm)||3||6||18AWG|
|Four-pin Molex (460mm+120mm+120mm)||1||3||18AWG|
|Four-pin Molex (360mm+120mm)||1||2||18AWG|
|FDD Adapter (+105mm)||1||1||22AWG|
Seasonic gives us two EPS connectors and six PCIe ones, so the SSR-850FX can easily deliver its full capacity through a high-end motherboard and up to three potent graphics cards. The number of SATA and four-pin Molex connectors is sufficient as well. Our only criticism is the short distance between SATA and peripheral connectors, which ideally should be 15cm.
Since this PSU features a single +12V rail, we do not have anything to say about its power distribution.
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Last week newegg had the 650 watt model on sale for $74.99. There was a $20.00 mail-in rebate which brought the price down to $54.99. On top of that there was a free $30.00 gift certificate for a fresh food vendor online which my wife wasted no time in using. That brought the final price down to $24.99. Best deal I've taken advantage of this year.
Initially I was really impressed that there was so much power in such a small package. Until I saw the cables, and the ridiculous capacitors. I know this brings a fantastic level of ripple, but I don't like it at all.
I gotta say, I really don't like this trend with higher end power supplies. As a modder, my cables are visible. And these cables would be satisfactory, if the capacitors were located ON THE PSU SIDE!! But they are located on the component side where they can be seen in all their glorious ugliness. It is not recommended to change the polarity..
I will be checking the units I buy more carefully moving forward. I would much rather have a longer power supply unit that has the caps inside.
Bottom line though, it is a gold 850W unit at an affordable price and a 10 year warranty. For efficient cards like the RX570/580 and GTX 1060, there are enough cables for 6 video cards. Pretty good for mining, but as for a visible gaming rig I have to say 4 out of 5 stars for functionality. Just put the caps at the other end of the cable, ya big dummy.
The PCIe cables are a little different than what I am used to. The 850 model and my 650 watt version have PCIe cables with two connectors instead of just one at their device end. Does that mean one PCIe cable can be used for both connections on a graphics card? On the other hand do I still have to use two PCIe cables and let one connector on each cable just hang there?
Anybody else know?
It's okay though ... they will survive without your money.
I went back and read the review. In the specs it shows 3 PCI-e cables and 6 connectors. It also indicates the 3 cables could be used with 3 video cards, each requiring 2 connectors.
I'll take a look at the video. I've watched some of his other clips.
Don't know how I missed this development.