CORSAIR RM Series RM650 CP-9020194-NA 650W ATX12V SLI Ready 80 PLUS GOLD Certified Full Modular Power Supply

Pros: 10 year warranty. 80 Plus Gold Silent under normal operation. Fully modular design eliminates needless extra cable. Not flashy - no leds or "gamer" design. It's flat black and matched my case perfectly.

Cons: Flat Cables. Hard to work with and they don't tie down well. Audible 'click' on power down. Pulls 5 watts when switched off. Sata power connectors spaced too close together @ 4 inches, lead wire to power connector too long.

Overall Review: Outstanding 10 year warranty - when you press the power button you expect your pc to turn on. Having a 10 year warranty assures that will be the case with this psu for many years. 80 plus gold efficiency - compared to my former psu that was 80 bronze, average draw at the wall was 5-12% less under similar loads (a savings of 10-30 watts). My system used 10 watts less at idle, and 20 watts less under full load (prime95 & furmark). Most of my use is in Lightroom and Photoshop where my system ran using 20 fewer watts. My system saved 30 watts running prime95 and 7zip at the same time. The fan is designed to not run unless under load - most of the time this psu will be completely silent. Fan becomes barely audible when I loaded it as best as I could (my system could only pull 320 watts fully loaded - 2700X, EVGA GTX 950 SSC, 3 HDDs, 960 EVO m.2). For the downsides- There's a subtle yet audible "click" when the psu powers down. I've never heard this before, so I'm not sure if my review unit is the only one that does this. My review unit pulls 5 watts when it's switched off at the back. How is this even possible? It's switched off... Flat cabling is awful. It's not easy to route and secure, and there's no reasonable way to utilize the included zip ties - smashed zip tied flat cables does not look nice even when it's hidden. Flat cabling doesn't bend where and how you want and I never knew flat cabling was a thing until now. Please go back to braided cylindrical cables Corsair. This psu is longer than any other I have, and barely fit in my case. Keep this in mind before purchasing. Total length is 8 inches with cables attached. It just barely fit and is pushed against the HDD bays in my case. This con is just subjective for my use. When I ran the cables I couldn't use 1 sata power cable in my case. The distance between power connectors is shorter than any other power supply I have (I have 4 pc's). All but this power supply the connectors are spaced 5 inches apart. This one is @ 4 inches. I had to use 2 sata cables to run to 3 hard drives where I only needed 1 from my old psu. I also feel that there's too much lead wire until the first sata connector, which is a compounded problem with having flat cabling that is more difficult to tie down and hide.

Pros: I am very happy with the Corsair RM650. I have been running this in my Ryzen 5 gaming PC for a couple of weeks now, and have zero issues. Here are the pros that I found: Ultra low noise mode keeps the cooling fan disabled while under normal operating loads. Maximum efficiency is at 50% load, which is the sweet spot for my Ryzen 2600X with GTX 1070 during gaming. Complemented with 80 Plus Gold means most of the watts from my wall socket are going toward killing the bad guys, and not leaching out of the (Japanese) capacitors. All the cables I needed were included, and had generous length to stretch across my ATX mid-tower chassis. All wires and connectors are black, which helps keep wire management clean, uniform, and organized. Compatible with Intel PSU Design standard rev. 1.4 (2017), which increases efficiency during low power states (sleep/hibernate/etc), better compatibility with the latest generation of CPU turbo mode power draw, and better response to waking a PC from sleep states. All RM series power supplies now come with a 10 year warranty!! Previously, this was only 5 years.

Cons: All of the modular cables (except for motherboard 24-pin and CPU 8-pin) are the flat ribbon style, instead of bundled/twisted. I find these more difficult to work with when trying to keep wires tame inside the chassis. I much prefer bundled cables wrapped in a sheath for both handling and aesthetics. No RGB/LED fan lighting. This is not personally an issue, as I prefer a minimalist approach to my gaming PCs, but it would be a selling point to the vast majority of PC modders that pack as much RGB into their cases as humanly possible. One more SATA daisy-chain power cable would have been nice for the folks that run high capacity RAID configurations, or have storage drives located in various mounting locations throughout their chassis (in cages, behind mobo, top panel, etc.) If my chassis was fully populated with 3 more drives, I would have to go shopping for another SATA power cable (only two in the box covering up to six devices.)

Overall Review: Trivial comment, but I'll add it anyway - Even though the listed contents on the box neglects to mention that a North American 3-prong power supply cable is included in the box, there is in fact one in there. Did I mention a 10 year warranty?! Thanks to Newegg.com and Corsair for providing the review sample! If you found my product review helpful in your search, please check Yes below. Thanks!

Pros: Sturdy, high quality construction and components. Whisper quiet, I can't even hear the fan above the sound of my GPU fan. Price to performance ratio is very good. High efficiency, running cool and using less power.

Overall Review: I used this in a recent build with my 8 year old son using an ASRock B450 board and Ryzen 1200 along with a 1060 GTX 6GB, 2 x 4GB G.Skill DDR4 3200 and a 256GB NVme drive. Installation was easy and we only had to use the cables we needed for the build so airflow in the case was excellent allowing us to easily overclock his CPU from 3.1 to 3.8 on the first attempt. This thing is whisper quiet, I absolutely can't hear it when the PC is on. It also seems to be running much cooler than cheaper brands I've used in the past.

Pros: 80Plus Gold Certified means it delivers power up above 92% load. Quite fans, turns on at about 250-280 W, stays at the low level until just beyond the 600W point. Modular cables to use only what you need to save space and keep down of the restrictive air flow in a case. Use what you need.

Cons: None found

Overall Review: Over all nice PSU, used it to replace an aging PSU that was starting to have issues. Computer still going strong since I replaced the PSU and old spinning disk. powering a TI960 video card and z170 Motherboard with 2 drive . Gaming and CAD work happen on the computer all of the time, ad it up 24/7

Pros: Nice looking and very good build quality...pretty normal for Corsair Did not even start up until under a heavy load and barely could hear it even then Plenty of cables that are long enough to fit most cases needs, all black is a plus although it's pretty much the norm now. Enough power for a mid range system, should handle any desktop CPU overclocked with a GTX 1070 or equivalent or even maybe a 1080. If you are a heavy overclocker I would recommend the 750w. Power seemed very stable, 12v, 5v, and 3.3v rails basically never fluctuated at all even under very heavy load. Can't speak to actual ripple as I don't have the equipment but with as much testing as I could do there was plenty of stable power. Relatively small to fit in a sub-compact build

Cons: I really canb't think of any and a seriously tried, even the price isn't too bad.

Overall Review: Test in a system with a R5 1600 16 gigs of DDr4 and an RX580 all overclocked. Not going to replace my 660 platinum but it will go in a new system with a R5 3600x and X570 motherboard with a newer mid-range graphics card.

Pros: -- quiet -- good components -- long warranty -- excellent measures

Cons: -- long case

Overall Review: You can’t make a good, stable power supply without quality components and the weight of power supplies correlates well with their quality. This unit is 3.5 lbs without cables. The large caps and neat board layouts show a lot of design care and attention to details, all hallmarks of a quality electronics. Having a 10-year warranty proves they back their product. Some photos show yellow components through the back grill, but Corsair now ships with all components blacked out. Chamfered edges make insertion into case easier. But make sure your case can accommodate a 160mm long case (about 6.5”) without knocking into cables or drives. The wider, flat cables may be a bit "twisty" in your install. It’s modular, so you don’t install extra cables unnecessary for your build. The 135mm fan takes up nearly the entire face. Seems Corsair got enough complaints from users about “my fan isn’t working!,” that they have a sticker over the cord jack warning “silent fan operation at low to moderate loads. In this mode the fan will not spin.” And it doesn’t. There is no coil whine. If you’d like a quiet, pretty powerful power supply that won’t break your budget, this is it. Power good measurement is very fast at only 70ms. The fan initially comes on spinning silently, then stops in about 20 seconds if there is a light load. It’s hard to make this unit make any noise. All voltages held within 0.1V of rating, well within tolerance. One note of caution: if you have an older 20 pin mainboard, this PS has a 24-pin connector with no splitting off the 4 pins at one side. If you need a 20-pin cable plug, check your mainboard’s power plug-in and insure there are no capacitors or other component that will interfere with the last 4 pins going down past the connector.

Pros: - Ten year warranty - Corsair has a great reliability history with power supplies - Strong 12v rail focus for amp draw so gfx gets most of the amps (It focuses on graphics draw so you shouldn't have graphics power draw issues with any single card) - Voltage manages to stay stable even when suddenly connecting high power loads (ex: a game starting etc).

Cons: The zero rpm fan mode. I'm sure alot of older people have experienced what happens at times when you leave your desktop off for a period of time. Sometimes when the fans go off dust/worn oil can make them just refuse to start up again. with them on/off all the time, i doubt even in the cleanest of houses the fans will last ten years. For me these newer 'ribbon' like cables are a bit 'eh' but that's cause i mod things, its better than plain or mesh covered or basically any normal consumer. But i prefer colored cause i often splice into cables to power additional custom peripherals and it makes it more of a hassle to identify ground/+5/+12.

Overall Review: Hard not to find these great to buy, the ten year warranty sells it itself. Really not a fan of the potential fan issue from experience powering things on off more causes alot more electrical wear. And in this case for no valid reason (these are normally quiet to me even at full speed) A good example is think how many lightbulbs are fine till turned off on often, all i know is i'm gonna disassemble it and connect the +12v to the positive fan wire since id rather pull more warm air out of my case 24/7.

Pros: Fit exactly in my p300 case

Cons: Fit EXACTLY in my p300 case

Overall Review: wish the fans were running all the time, not just when it was a heavy load