Very easy to moniter temps, voltage, fan speeds, etc. using iCue. I have a full corsair build and have zero complaints despite many having been very vocal about how troublesome the program is. The fan typically stays off as my pc has good airflow.

This was to replace the old power pack that come with tower and it's been known corsair are well made and reliable so i taken the plunge and fitted this and so far so good had this running now for 2 weeks so can't say regarding long-lasting

Great power supply

I purchased this to go in my first computer in years and I wanted a rock stable poser supply since I wanted to make this my first overclock project in years. I was a little worried about it being refurbished but I also know that refurbished can be due to cosmetic damage to the shipping case.

Price Rock Solid stable power

Short warrenty

Good if Setting up SLI. video cards.

Got this on sale with a $20 MIR, otherwise the regular price is high. Typical Corsair quality and the fan hardly runs on this so it's really quiet. Corsair Link is really neat, especially with an H80i, and gives you key info on your system.

Corsair quality and power; Dead Silent; Corsair Link is neat

Nothing

Needed to upgrade for a video card and this comes with a 7 year warranty so this will last longer than most of the other hardware in my system!

Bought this to replace an old 650w Corsair ready for upgrading everything else in my rig. Not had a modular PSU before, but it allows for nice neat cabling with enough supplied for my needs. The voltages are all stable and the Corsair link software can make a handy system monitor.

Let's take a look at Corsair's new RM850i today. We've already seen how the 750 watt model does, and now it's time to run some tests on the rest of this new line of units to see how consistent the platform is. Certainly, it's very promising with its full modularity and Corsair Link functionality.

Corsair offers a large selection of PC power supplies and today we will be taking a detailed look at their new RM850i PSU. The RMi Series includes four models: the RM650i, RM750i, RM850i, and RM1000i.

Very quiet operation: zero RPM mode up to ~40% load; 7-Year Warranty and Comprehensive Customer Support; 80 PLUS Gold certified; with at least 90% efficiency at 50% load; Supports Corsair Link digital interface; Excellent voltage regulation (±2%; Stable power (up to 50°C) with very low AC ripple...

Low fan speed (quiet) causes PSU to run a little warm at mid power levels