CORSAIR RMX RM750x, 80+ Gold Certified 750W Fully Modular Power Supply

First, a quick go through the obvious advantages of this unit, which I knew before getting it (and you probably know too, so skip this if you've really gone over the specs):1. The modular connectors make assembling your build or modifying it a breeze. You can easily disconnect any and all cables to take whichever part out of your system (in particular, the ATX 24-pin cable and 4-pin CPU cable are only modular in high-end products, and they usually make getting at your motherboard a pain after the initial installation; not here).2. This PSU's fan is practically silent; it doesn't even kick-in below 300W, and even at full load it's barely audible (Corsair says 22dB, and I can easily believe that).3. It's power-efficiency is nearly the best you can get (more than 87% at all loads on a 220V input, or 85% on 110V input).4. Corsair offers a 10 years guarantee, which is great, but then again I never had an issue with a PSU that wasn't a manufacturing defect (so, my experience is that a 1 month warranty is about all you really need). Nevertheless, peace of mind is always appreciated.What I didn't know when I ordered this PSU is how premium its packaging and accessories feel. Everything from the solid box, to the custom cable pouch and a carrying sleeve for the PSU itself, makes unboxing it is a really nice experience. There's not much use in that after you've assembled your PC, except perhaps if you for some reason carry a PSU with you (technicians, or some competitive gamers?), but it will sure add reselling value down the line. Regardless, it was a really nice surprise for its own sake.The only two things I'd like to point out about this unit which aren't raving recommendations are:(i) Its dimensions (18x15x8.6 cm) will make it difficult to work with in a mini ITX build (make sure that your case can accommodate it if you use that form factor), although modular cabling will help somewhat. If you build a standard ATX system, then that's not an issue.(ii) A minor peeve is that all cables are colored black. Undoubtedly some prefer it that way (it makes the 24-pin cable more pleasing to the eye in open/glass-door builds), but I'd have liked some color-coding (maybe on the bottom of the connector, where it wouldn't be visible once assembled) to help me find pin 16 (the one you need to short in order to test the PSU or turn it on when disconnected from a motherboard -- e.g., if you need to bleed a watercooling loop).

Used this PSU and a powered USB adapter (SmartDelux 7 Port Aluminum USB Hub with 4 USB 3.0 Ports) to address some phantom USB and kernel failure issues.where the power supply may have been the culprit. This PC is a 2 y/o Dell XPS 8900. So far so good with my 4GB 1050 card maxed out and my game settings on the highest quality. With the hub, I like that i can get to my usb plugs from where I sit.This PSU is about two inched longer than the Dell stocker and since the modular cables all come out of the end of the unit - distributed evenly across the front instead of coming out as one big cluster from a single point, I needed and inch or more additional clearance at the end of the unit. Had to swap my optical drives around and eliminate the usb and audio ports on the top of the case and it fit snugly just above the motherboard.As someone else noted, the modular cables are almost 2x longer than are needed for this smallish mid size case and were really hard to get tucked away cleanly without putting a load on the connectors. It's a stock case with an extra fan in the side, so no one sees them and... function before beauty.Great product though and has eliminated crashing during intense game play. Packaging and instructions are great and the product looks well built.

Great PSU as always from Corsair.Mild warning however. In a move for even greater efficiency, these PSU's feature fans that actually turn off completely when the PSU is at low load. This is generally good for efficiency and silence, but PSU fans are usually not the loudest or most powerful fans in a system, so its kind of a small gain. However, I discovered that this negatively impacts the airflow in my case a bit, and I'd much rather have the PSU fan remain ON at all times to help exhaust air out of the case.Note that an i7-6700k and a GTX 1070 combined with other fairly low power components is not enough to EVER push this PSU high enough to turn on the fan. This speaks very well to the units efficiency, but it means even while my GPU dumps heat into my case, the PSU isn't helping exhaust any of that air. Count up your wattage, and don't buy a grossly over capacity unit particularly for use in smaller cases with limited exhaust flow rate.

So far, just installed it....really nice power supply. Super easy to install and not too big - modular. It comes with alot of cables but you probably won't use all of them. I happened to have a PCI express bus and used those supplied cables for my graphics card and the sata cables for my hard drives and DVD/Blue Ray drives. Had more than enough cables supplied and have 2 hard drives, and DVD and Blue ray along with the graphics card.Has instructions with the power supply. But if you have a Dell, pull down your user/service manual too...it gives a great insight to your actual machine. But quick getting in, no matter. Just look at what you have in there and what kind of cables you need before getting started that way you can kind of separate out stuff and get the cables line dup.The cables are wrapped really well and bend and tuck away well. Alll and all...nice drive and it actually sped up my computer since I am running an old Dell XPS 435T/9000 with a previous 475W power supply...which wasn't the best deal in the first place.