Pros: This is my first foray into the world of liquid cooling, and I gotta say, I was pleasantly surprised at how easy it was to install. I thought that I’d need a lot more “stuff” (pump, fluid, power) in order to use liquid cooling, but this includes everything you need. It took less than 2 hours to remove the old cooler, clean the CPU, and install the H110i.

Silent. My case is much quieter now, and the radiator is much more form efficient than my previous air cooler.

Cooling performance is great. I was able to lower the overall/average temp of my CPU by a few degrees C, while simultaneously overclocking it for the first time.

This is a great replacement for stock/air coolers. The installation was not any more difficult that installing an aftermarket air cooler.

Form factor is good, and the design is great. This really looks good inside my case!

Everything you need is in the box. This literally could not be any easier to install.

Cons: None

Other Thoughts: I am using a Cooler Master HAF-X case, and I had to drill a few holes into the chassis in order to mount the radiator. There are a few good videos on this on YouTube, so take a look at one of those if you’re planning to mount this into a HAF-X.

I used this to replace a ZALMAN 135mm air CPU cooler. I really liked that cooler compared to all of the stock coolers I’ve had, but it took up quite a bit of space inside my case. This unit obviously keeps the CPU cooler, and takes up only a fraction of the space.
I’m running an AMD FX-8150 @ 4.2GHz (stock 3.6GHz) and temperatures never even got close to hot. AMD OverDrive was reporting anywhere between 40-45 C whereas Corsair LINK was showing 30 C (under load). I’m not sure why LINK is showing the temp to be much lower, and that’s why I provided both readings.

I really feel like I have a lot of room for further overclocking here, even on the older FX-8150.

Pros: It looks ok.

Cons: The brackets to hold the CPU Cooler on to the MB are too big, they won't line up with the holes on the MB.

Pros: The 280mm rad is most definitely nice, as 140mm fans are simply quieter than 120mm fans when moving the same amount of air. I'm directly comparing this product to Corsair's own H100i, which uses a 240mm rad and is much louder when those fans spin up with the CPU at full load. While the H100i performed great cooling my OC'ed i7 4790K, as I said the noise level was higher and there was also this annoying bug with the RGB LED in Corsair Link. This bug caused the LED on the Corsair logo to change colors after a cold reboot and was very upsetting to me and many others that experienced it. I was able to finally workaround this bug, but it took a lot of troubleshooting. I had no such issues with the H110i and the newest version of Corsair link, which I'm happy to report.

Compared to my H100i, I had on average a nice 5-8C drop in temperature. Sometimes even more, depending on the ambient temp. But overall, this cooler trounced the H100i, which you would expect but I honestly did not expect it to by this big of a margin. This seriously impressed me, especially considering how much quieter it is.

The overall look of the cooler is very pleasing. I like the new design, although I also loved the H100i as well. I like how they put the grey strips and logos on the 280mm rad. It makes for a really nice touch.

Installation was very strait-forward on my LGA 1150 socket. I didn't have any issues there. I also just used the supplied thermal compound instead of changing it out for something more exotic. In the past I've found that whatever thermal compound Corsair is using is of a very high quality, so in my opinion there's really no need to change it. This makes installation even easier as it's already applied perfectly and ready to install out of the box, with great performance I might add.

Previously using my H100i, setting my core voltage on my 4790K to 1.3v was not very practical as it would get a little hot for my liking. But with the H110i I can use this voltage and keep it within safe temps easily, which allowed me to get another 200Mhz easily while remaining perfectly stable. To me that was just great because I felt like I was restricted before. Now I feel as if I can really let my CPU stretch its legs without worrying. I don't like to push my hardware unless I can keep the temps under control and I'm pickier than most OC'ers in that respect.

I have to say that Corsair Link is very nice these days. In the past I've had some issues with Corsair's software. From their keyboards, mice, and Link software. But it has improved steadily and it's finally at a point where it's become free of most bugs and easy to use. I really like how the Link software shows you a picture of your case and lets you assign the fans you can control to their respective positions. Once you get it all set up, it's very easy to control everything and you'll have no problems knowing exactly which fan you're dealing with. For whatever reason I have two fans in my system it does not detect (all my fans are 3 pin so it doesn't NEED 4 pin fans), but those are two fans that I can control with my motherboard anyway. I have them set at 100% and they are staying there. All the fans that matter, I can control with Corsair Link.

The pump and block design seems of a higher quality than earlier builds. It's just heavier so I believe the backplate has a bit more meat to it, which only means it will absorb heat better. Always a plus in my book. The packaging was very neat and that's always the case with any Corsair product. No complaints there at all. You could probably drop it 20 feet onto pavement and nothing would get damaged!

All in all just a great AIO cooler with performance that's insanely impressive.

Cons: Corsair's naming conventions are EXTREMELY confusing at this time. I guess for 2016 they decided to rename all their Hydro series products but didn't change much, except for slightly tweaking the blocks to make them easier to install onto smaller microATX boards. This cooler is exactly the same as the H110i GT. I have scoured both products as far as the specs go and can't find anything to suggest they changed anything when comparing the GT version to the newer H110i, other than perhaps a slight tweak to the overall size of the block (but even that is not confirmed). I hate when companies re-badge products with new names, especially when the names are so similar. It's confusing to buyers and those of us looking for info on which cooler to buy. But rest assured, this cooler will perform the same as the H110i GT, so keep that in mind if you're reading some other reviews.

The 280mm radiator does limit which cases can support this beast of a cooler. I used to have a Corsair 800D, and while it's getting a bit long in the tooth as far as it's age, it's plenty big enough for a cooler like this. However, it DOES NOT support this cooler by default as it can only handle a 240mm rad (or 360 rad which uses 3x120mm fans) at the max. Even trying to mod the top of the 800D for this cooler would be tough due to the recess in it. It's just not even worth trying, which is why I decided to get a 750D, which supports a 280mm rad by default and has some newer features in it like front USB 3.0 ports (yeah the 800D is THAT old, although it does have a 3.0 upgrade kit if you can manage to find it). Just be sure your case can support this cooler before dropping the cash on it.

The fans that come with this cooler are loud for 140mm fans. You could reduce the noise levels further by replacing them with some good Noctua fans, or perhaps some other 140mm fans using fluid-dynamic bearings. Corsair has some great fans available that are better than what is supplied with this product. That said, it's not something you HAVE to do, just something you MAY want to do.

Other Thoughts: Other than Corsair's confusing naming convention, they have really came a long way over the years. All their current products have a level of excellence rarely seen these days when comparing them to other vendors. They could still use some more work on the software side of things, but I am seeing improvements so I have to hand it to them there. I just wish they would move faster in that area. All that said, I highly recommend this cooler. The only reason I took an egg off is because of the limited case support, as plenty of cases don't support the 280mm rad by default. Performance wise, this thing is a beast and the price is extremely reasonable. Another great product for Corsair!

Pros: Was easy to install and keeps my 6700k cool

Cons: Unfortunately one of the two included fans rattling and must be run on quite mode at all times.

Pros: it is bigger than the H100i so more cooling area.
It is really well made.
the hoses are plenty long for any mid tower, I have it in the front of my Define R5.
It came with the original AMD type mounting ring(this is an upgrade from the H75 which used a 4 screw mount)
the LEDS are cool even though I can't see them in my case lol.
it was cheaper than the older versions of it.

Cons: It is big! And I mean bigger than the previous versions in length. so it doesn't fit right in my case which is a newer design made to use 280mm radiators. In neither of the spec'd positions would it fit right. it was about 1.5mm off from perfect mounting holes. I got it to fit in the front but it was a tight squeeze. not Corsairs fault totally I get that. but the extra metal they use on the ends make it a harder fit. I got it because my case is made for that size. they could get rid of the space between the fans and it would have no issues fitting in any case. not enough to take an egg off for me but it was unexpected. for the $$ it costs I would like to see it come with the Regular version of the SP fans. and maybe 2 LN adaptors .

Other Thoughts: I am very happy with my buy, it allows me to overclock my CPU at much higher rate than the H75 I had before. it could be 2mm wider to seal the fans better against the frame. and swivels on the radiator would also be helpful in the installing process. I did replace the fans with Noctua NF series fans as I didn't like the SPs on my h75. it is the round frame fitment on a square radiator. I don't like air leaks it is inefficient and a waste of space. I am thinking of using one of the SP140ls to put in the middle of the radiator fo push air through the gap between the fans. This thing IS TOTALLY WORTH THE BUY!!!!!! here is the basics of my temps. @4.8Ghz and 1.488v on an AMD 8350(125w TDP) idle on the net w/case closed, doing this CPU is 37c. I ran Prime95(max heat setting) on this setup and with case open(i.e. no fan filter and front door open) it kept the CPU at 59c average. gaming on fallout4 ultra settings, CPU got to 48-51 on a balanced fan profile. I use a silent case which makes idle temps go up about 4-6c so if I yank out the fan filter it drops the temps so take that as you like. it is a killer cooler for your CPU needs.

Pros: Let me start by saying that an AIO cooler for my build isn't my first choice, but it also isn't my last. I'm currently planning a custom loop for my configuration and this will be my 3rd (yes 3rd) AIO cooler I have tested/reviewed. I own the original H110 from several years ago, the H100i GTX, and now the H110i. Don't ask why I have so many, I just do.

I can honestly say having used all 3 within the recent future on the same configuration, I can say there is a 2-4C drop in my core CPU temps as I progress towards the newest model, being the H110i. The H110 didn't have the USB interface, controllable pump speed or any of the other fancy stuff in the software. The H100i GTX built upon that in the 120mm configuration and added the USB interface and all the bells and whistles. It did reduce my temps from the H110 using the same PUSH/PULL configuration. This brings me to this model, the H110i, which has further improved upon the H110 and the H100i GTX.

They did change the radiator design from a rounded edge to a square edge, not sure why, but it doesn't matter to me. They changed how the pump mounts on both sides. Meaning the backplate used to be a plastic type material and now they are using metal, which I like, feels more sturdy. They also changed the pump design and how it mounts to the backplate. All in all I would say these were improvements and made the installation and removal quite easy.

The pump did come with a paste pre-installed, which unless you plan on taking it off for testing like I frequently do, just leave it alone. I ended up removing mine and going with the best in the industry (IMO), Thermal Grizzly. I saw a minor improvement in my core and load temps after applying that over the stock paste.

All in all, I'm not going to divulge my idle and core temps because I'm not the norm. My Skylake has been delided and had custom paste put in place of the stock Intel paste. It was such a significant drop in temps that providing them here would skew the reviews of others. Leave it to this, this pump is by far the best at removing heat from an overclocked i5 Skylake (4.9Ghz/1.424V).

Cons: The cons...I will just get right there and say the fans. I can't emphasize this enough, the fans are loud. Sure, they might be quiet when running in silent mode, but why would I want that when I'm overclocking? I literally almost immediately replaced them with Noctuas that at full speed, have equal or better static pressure and are much quieter.

Another con is the tubing. Having owned the older H110, it was so much more flexible and easy to work with. I'm not sure why they changed it, maybe that instances of breaking/leaking with it, but mine never did. This new tubing on the H110i is so stiff I worried in the beginning about the torsional stress it was placing on my MB.

Other Thoughts: Would I recommend this in place of a custom loop or massive air cooler? Sure, but it depends on your needs individually. If you want your case to look clean, improve air flow from your case fans and keep the noise down, then go with an AIO cooler from Corsair. If money isn't an option and you live dangerously, go custom and be happy. And those with the massive air coolers...sure they are cheaper (relatively) and have almost equal performance to this AIO cooler, but they don't make your case look minimalist/clean and they are just down right ugly.

Pros: It keeps my cpu at about 27 degrees Celsius which is perfect! The design is really sleek, and the added small touches really make a difference. For example, the device that covers the cpu itself, there are leds which can be programmed to indicate the temperature the cpu currently rests at. Which if you have a see through area on your case is really helpful. Also the ability to download the software and get all the information from the motherboard directly is a huge plus. I can now easily see all the temperatures of every device plugged in to my system and I can change all kinds of settings related to fan and pump speed. The install wasn't so easy though I imagine a larger more modern case would have made that easier.

It was very quiet as I knew it would be but I have to say I could hear the pump in that silence which got to be kind of annoying, but that's just me being over critical.

Cons: The worst part about this was its installation engineering. In todays day and age, cases come in all shapes and sizes, I figure if the motherboard that fits the cpu can fit in the case, then so can the watercooler that says it fits the cpu. The problem I had was that it was WAY too big for my case, not so much of a problem though, I'll just mount it outside of the case, however that led to more problems. The problem of screw holes lining up. Even if this fit in to the case I knew I had no screw holes where the manual intended them to be. I ended up drilling a few holes and hooking the radiator to the case in my own way. A good way around this for future engineers would be to allow for adjustable screw holes to fit hundreds of more pc cases. Seriously.

Last little issue I had was that once I had this hooked up, I wasn't really instructed where to go from there. I actually didn't know there was software, I just figured there was because why else would the cooler have a hookup to the motherboard through usb? I did a quick google search and from there it was easy. The usb thing is another problem though, it took up a whole port on my motherboard which is very modern, only about a year old. Which meant to configure my cooler, I had to unhook a cable which went to two of the ports on the front of the case. Not a huge issue I guess but a different hookup would have been more enjoyable.

Other Thoughts: All in all, for the money, with the right case, this is worth the buy, my issues were most likely not a common thing, which is why I only took one egg off for the problems. I know if my case was perfectly fitted this could have been a ten minute installation no problem.

Pros: -Seems very well built.
-The cords are long and flexible.

Cons: -The thickness of the fans and radiator was a bit much for my system and was physically impossible to install. My case supports 2-fan liquid cooling at the top of the case, but the fan/radiator overlapped the motherboard by 3/16th of an inch, making it impossible to actually install. (Base is be quiet! Silent Base 600 with MSI a99x Gaming 7 motherboard)

Pros: -Absolutely beautiful design and premium build
-Fans are quiet and powerful with a top speed of 2000RPM, which is an upgrade over previous iterations of the H110
-Silent pump
-Corsair Link software is regularly updated (currently v4.2.1.42) and allows for you to customize the color of the block LED’s and the fan speeds as well as temperature monitoring for both the coolant and CPU
-Uses SATA power for the pump and fans, so if you have a modular power supply, say goodbye to extra Molex cables
-All-in-one setup is user-friendly, unlike traditional loops which are less reliable, require regular maintenance and can’t be passed on to those who are less tech savvy
-2-year warranty

Cons: -The fans make a fair bit of noise when set to the maximum speed, but they are still relatively efficient
-Can’t customize tubing as this is a sealed loop
-Corsair Link software uses more resources than I’d like
-Not a lifetime warranty

Other Thoughts: I’ll be honest and admit that I previously used a modded Megahalems CPU cooler in my massive Cosmos II case, but I was ecstatic to upgrade to something more high-end. I still hear echoes when I open my case, but the H110i Extreme Performance is beautiful inside and was easy to install without modification.

I was impressed with the performance. With the fans at a quiet 1000 RPM, I was able to overclock my 3930K to 4.6GHz with 1.38v and temps were 27C idle and 75C load, which is quite good for an early six-core Sandy Bridge-E CPU. My Megahalems would run 10 degrees warmer.

I highly recommend this product to anyone who wants high-performance, reliable CPU cooling. I would also recommend this to those attracted to water cooling as I have found custom loops to be more trouble than they’re worth while this product retains most of the benefits.

Pros: Stunning looks
Brain dead simple setup
Very quiet on slow fan settings
Tremendous cooling capacity compared to even the best air coolers for not much more cash.
Corsair control software is amazing. It’s easy to use and also helps monitor and define what areas of the case need cooling attention by monitoring many other thermal sensors (mobo, CPU, chipset, Video card etc.).

Cons: Upon opening the box I noticed the Aluminum radiator fins were damaged. This likely doesn’t change the radiators ability to cool much but it looks tacky having a few spots where the fins are mashed flat. There is no way to know if this happen during shipment or at the factory.

If you plan to use this in a machine requiring extreme cooling under load, be prepared to deal with VERY noisy fans at high speed. For my purposes however I will never see any CPU stress to speak of. There may be quieter fans available but look for fans with higher static pressure to push air through the obstructive radiator fins.

The radiator comes with 140mm fans. Mid tower case options are limited. I wanted to use the rear exhaust fan in my Fractal Designs Arc Midi R2 case so I oriented the water hoses just behind the 5-1/4 bays. This required me cutting the bottom corner out of the 5-1/4 bays with my dremel.

Other Thoughts: Intel i7-3770S @4GHz (overclocked)
ASRock Z77 Fatality Professional
2x4GHz G.Skill Sniper DDR3 2133
Sapphire ATI 7970 3GB
Fractal Design Arc Midi R2
120GB SSD
Windows 10 x64 Enterprise

I wanted to update a secondary PC workstation i use on the sidewall in my media room. I had a collection of used parts and purchased a used Z77 board from (e} bay. I wanted a fairly quiet machine that would not be audible while listening to music. I did a mild overclock to 4GHz as this ASRock board’s BIOS allows non-K Intel CPU multipliers to be changed. I also used the Prolimatech PK3 thermal grease and not the stock grease. The biggest ordeal was finding a mid-tower case to fit the large radiator+fans. Larger full towers should be more forgiving. I needed to fit the system into less than 20 inches of vertical space. The control software is just plain brilliant. The pump LED can change color as the temps increase. This case has a side window that shows the motherboard and water pump. The control software allows the LED in the top of the pump to change colors at 3 user defined temperatures. My idle temps for the 1st core hover around 89F overclocked to 4GHz. I had a competing vendors top dual 120mm closed loop cooler 5 years ago. After a year it developed an issue with air bubble and would not pump. I would have to shake the system violently to get the air bubbles past the pump so it would circulate water. It eventually failed. Only time will tell if Corsair can make a reliable closed loop cooler. I will not use this system very often so it should last me at least 5 years. If it fails like the last one then I will likely never buy another water cooling system again.