Corsair RM Series, RM450, 450 Watt (450W), Fully Modular Power Supply, 80+ Gold Certified

I don't drool over PC hardware, but this power supply has a "sexy" look :) The black finish is man-cool and the cabling is solid and long enough for my particular mid size tower case.It's very quiet. Matter of fact, it's silent. I have it in my bedroom and installing this PSU made me realize that I really need to find a silent CPU cooler because that's the only darn noise I hear coming out of my PC now :(

Rock solid performance... Quiet and never lacking for power. My computer builds are always long term until the motherboard no longer supports current hardware. This power supply replaced a 6 year old SeaSonic that was causing intermittent OS hault. Corsair RM Series, RM450, 450 Watt (450W), Fully Modular Power Supply, 80+ Gold Certified

Very quiet and appears to be well built, but doesn't have enough cables. It ships with 2 peripheral (sata) cables. Each cable can support 3 devices. One cable powers my 3 hard drives at the bottom of the case. The other powers my dvd drive at the top of the case. That leaves me with no connectors to power a fourth hard drive. I checked the Corsair web-site and no cables for an 'RM' power supply are listed. So I guess I'll have to use the Molex cable and buy a few Molex / Sata adapters. (messy...)

Built a new computer, which only required ~350W. This PSU worked fine for the first 3 days, then it caused a power surge when I tried to turn it on. I then found out these RM models have no Over Current/Over Voltage Protection, which means that such a power surge, without the appropriate protection from the PSU, can damage other components (thankfully my parts were okay, I think.. my audio drivers have been pretty screwy ever since then, but IDK if its cause of mobo damage or just the craapppy "Realtek HD Audio" drivers which I remember giving me trouble on a past computer before too. I have now purchased a Corsair AX 860, and it has been flawless for the past month! Not to mention it actually has protection for your computer, for some peace of mind.

Installation: 2 / 5I admit I sound like a Klutz, but I actually had some trouble installing this power supply. I first attempted to connect the PSU's 20-pin plug to the motherboard's 24-pin header and the 4-pin plug to the CPU header, because that's precisely how an older PSU of mine worked. But this setup wouldn't boot. What needed to be done was snap the 20-pin and the 4-pin plugs together, connect that combo to the 24-pin header on the board, then run an extra 8-pin cable and connect it to the 4-pin header on the board, leaving 4 pins oddly overlapping and unconnected. Some documentation would have helped here, but this product comes with zilch.Efficiency: 3 to 5 / 5, depending on loadAccording to 80plus, this is one of the most efficient power supplies around (I'll post the link to the report in the comment section). It attains 90% efficiency at optimal load, which is spectacular - but here's the catch: efficiency drops significantly at lower loads and 80plus doesn't even look at that. But "lower load" is exactly what most modern PCs spend most of their time in! My Ivy Bridge quad core with 4 drives putters around 35 Watts writing this review using this Corsair power supply, and at 75 Watts at high CPU load. Those are good numbers, but actually they're practically the same with the Seasonic 300W PSU which costs half of this Corsair. You need a PC that draws a whole lot more power (like a gaming rig) to see any actual impact from of that "gold" rating.Features: 3 / 5Here's a few selling points of this PSU and my take on it:1) Modularity. The major advantage of this feature is supposedly a cleaner build, but honestly my before/after looks about equal, because the cables are long and of the flat variety (like old floppy cables). Perhaps if Corsair had supplied more cables (of different length) I'd see more of a difference.2) Silence. It's true that the fan doesn't engage, and many reviewers revel about just that. However, I wonder what good this does. I never heard my PSU fan before; it's always the graphics card or CPU fan that scream. As a matter of fact, I wish that this PSU moved a bit of air as it sits above my drives.3) Corsair Link. This device comes with a monitoring feature! Now, I'm all over geeky things usually, but in this case I'm not sure. The CorsairLink software can be downloaded for free, but the supplied cable doesn't match anything on my motherboard - is it USB, or a proprietary thing that needs one of those "CorsairLink Hubs"? No idea unfortunately, and like I said, NO DOCUMENTATION.Summary:If you want a fully modular, silent, and highly efficient power supply at an elevated load (over 100W), this is a solid contender. If you're just building an internal-graphics PC, it's probably overkill and you'll do just as good with a "Bronze" PSU of lower wattage.

My wife recently got a desktop, so I moved mine out to the living room so we could share a desk. Let's just say the system hadn't been built for ambient noise reduction. So I've been going through a process of upgrading to quieter parts. Fractal Design Define R4 case, EVGA GTX 970 SC with the ACX 2.0 cooler, and now the RM 550.My old PSU was the main noise generator in my system. Even in the R4 case, it was clearly audible at all times. This power supply removes that issue. Zero fan operation below 40% load, combined with a zero fan-speed BIOS for my graphics card, means that the system is now sub-whisper quiet at idle. Sitting two feet from the case I can barely tell that it's on.That's not to say there aren't some minor issues. I'll echo the comments of others about the stiff cabling; it doesn't really care to bend around a lot. And I found it rather difficult to lock some of the modular cabling into the power supply, especially the motherboard power connector. But once you've got everything together and running, the lower sound payoff makes it all worthwhile.I'd definitely recommend this PSU to anybody looking to build a quiet system. It's probably not meant for anyone who wants to do crazy overclocking or who's going for an SLI/CrossFire setup; there aren't enough PCI-E connectors for SLI/Crossfire, and the single 12V rail could make things a bit dicey at too high of a draw. But for your average enthusiast gaming PC, this one's definitely a winner.

I've assembled it into my Silverstone Sugo SG13 to power an i5_6500 on a b150 ITX chipset and a GTX1070. All's well until now.The only issue I have with this PSU is it's form factor. It's a full size ATX PSU that'd be great in a full tower, or a mid-tower. But in my tiny shoebox, it takes up way too much space. Though that's more my mistake than the fault of the PSU itself.

Works well and is nice and quiet.

It's very good

Got Lightning Deal

So far it's fine. It's been 6 months or so and it's hasn't messed messed anything up yet. I've heard that Corsair isn't the best for power supplies though. At the price it's probably better to go with something else. Better safe than sorry.