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Customer Ratings & Reviews

Your price for this item is $169.99

Customer reviews

Rating 4.6 out of 5 stars with 315 reviews

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Rating by feature

  • Value

    Rating 4.4 out of 5 stars

  • Quality

    Rating 4.6 out of 5 stars

  • Ease of Use

    Rating 4.5 out of 5 stars

Pros mentioned filter

Cons mentioned filter

91%would recommend to a friend

Customers are saying

Customers love the Hydro Series H115i RGB Platinum's excellent cooling performance and vibrant RGB lighting. Many appreciate its quiet operation and ease of installation, finding the setup process straightforward. While some found the size of the radiator to be a limiting factor and others felt the price was high, the positive feedback on cooling and aesthetics outweighs these concerns for most users.

This summary was generated by AI based on customer reviews.

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Page 13 Showing 241-260 of 315 reviews
  • Pros mentioned:
    Cooling

    Rated 5 out of 5 stars

    Perfect

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    Posted . Owned for 2 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This is the best water cooler ever picture dont do it justice

    I would recommend this to a friend
  • Pros mentioned:
    Rgb lighting

    Rated 5 out of 5 stars

    corsair hydro fan

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    Posted . Owned for 2 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    the led light are so fun to look at and easy to setup

    I would recommend this to a friend
  • Cons mentioned:
    Radiator size

    Rated 5 out of 5 stars

    Nice. Aio

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    It was a nice aio but sadly it was to big for my case :(

    I would recommend this to a friend
  • Pros mentioned:
    Rgb lighting

    Rated 5 out of 5 stars

    Pretty great cooling system plus the rig looks awe

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Awesome makes my pc build look awesome, would recommend RGB!!!

    I would recommend this to a friend
  • Pros mentioned:
    Cooling

    Rated 4 out of 5 stars

    Nice

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Keeps cpu super cool and nice lighting from the fans to the cooler

    I would recommend this to a friend
  • Pros mentioned:
    Cooling

    Rated 4 out of 5 stars

    Great aio cooler!

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great AIO cooler! Keeps my i7-9700k temps cool and looks great!

    I would recommend this to a friend
  • Pros mentioned:
    Rgb lighting

    Rated 3 out of 5 stars

    Pretty AIO that works quite well

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    Posted . Owned for 7 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    It's a nice AIO with great RGB if that's your thing, lots of wires to manage and I am not a fan of the method used to attach to AMD AM4 processors. There are 4 studs already there. Why can't we just use them instead of the latch method. Returned and purchased and Arctic Freezer online.

    No, I would not recommend this to a friend
    • Brand response from Corsair Art
      Posted .

      Hello Chris,

      And thanks for your feedback. If at any time you have to reach out, please don't hesitate: support.corsair.com

      -Art CorsairGaming

  • Rated 4 out of 5 stars

    Good, but missing key feature

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This cooler works excellently on my X299 i7-7820X. The pump block has all the connections you will need for this AIO. One draw back is there is a gap between the fans and the radiator, creating a lack of airflow through the rad and air turbulence in the case. This can be solved with a set of foam 140MM fan gaskets. The ones from Phobya work great.

    I would recommend this to a friend
  • Cons mentioned:
    Radiator size

    Rated 4 out of 5 stars

    Cools great!

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great AIO cooler but very big so make sure your case can support.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Rated 5 start with caveats

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    Posted . Owned for 2 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Unit itself is fine but does not have the correct bracket for my asus MB. Had to jimmy rig it plus one of the fans RGB stopped working. Corsair was nice enough to send a replacement but had to prepay then another week to get your refund. Was it worth it? Yes.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Not 8 dimm channel friendly

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I bought this cooler for an RT4 socket. My mother board has 8 dimm channels and the micro usb wouldn’t allow me to put one of the memory sticks in. I used a dremel tool and shaved the micro usb down and got it to fit with a little wiggle room. Other than that it works great and looks amazing.

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    Works great

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    Posted . Owned for 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I Like it but the directions are a lot to be desired I dingy like it when they are in different languages all on the same step So it saves a page but it makes it hard to follow sometimes. I'm not a slouch when it comes to builds but the small print and all the jumping around makes it harder. The internet directions are much easier.

    I would recommend this to a friend
  • Pros mentioned:
    Cooling

    Rated 4 out of 5 stars

    great aio

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    Posted . Owned for 4 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    still working fine and a must have for overclocks.

    I would recommend this to a friend
  • Rated 3 out of 5 stars

    Average Cooling, Poor Documentation

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I don't see any significant cooling results - the CPU (i7-9700k) can still easily reach 80+ degrees (C) when taxed, so it's on par with air cooling. Plus, with this being a closed system AIO, there's no (recommended) way to expand the system, such as adding the GPU or a reservoir to the cooling loop. For most that won't be an issue, but for hardcore enthusiasts, that could be a problem. What was extremely frustrating for me was the documentation. After installing the cooler, the LEDs on the pump were not working, and I wasn't entirely sure at the onset that I could trust that the system was functioning at all. What I found in my web research was that this model REQUIRES a five-wire SATA power connector, and the splitter I was using to connect this to the power supply was a standard four-wire. Once I purchased and installed a five-wire splitter, the LEDs illuminated as expected.

    No, I would not recommend this to a friend
    • Brand response from Corsair Art
      Posted .

      Hi,

      How is the CPU being taxed? Is this during synthetic benchmarks? If so, please stop those and use the computer as you usually would to see the actual temperatures that you'd see from everyday programs/tasks.

      If you have anything else we can help with, please reach out: support.corsair.com

      -Art CorsairGaming

  • Rated 4 out of 5 stars

    Double check no TRIPLE check compatibility

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    Posted . Owned for 2 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This cooling system is fantastic and looks great. BUT! Before you buy it use pcpartpicker.com to check and see if This is compatible with your computer. This was compatible with both of my pc cases but I had to make some modifications and in one build I was able to make it work but the fans were not visible.

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    great colors, cools well. tubes are a problem.

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    Posted . Owned for 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Ease of setup was great, except placement with the tubes. with them going out of the side of the pump/heatsink, they run right into the memory. So now I have 2 black tubes running over my RGB memory, and the angle isn't very smooth anyway. In my core P3 case I can't find a perfect placement. does its job though!

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    AIO

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great upgrade from my H100V1. It keeps my cpu a lot cooler. The only downside I had was it took a few minutes to figure out what way to put the AMD bracket on and luckily I save the two plastic pieces that came with my cpu fan, otherwise I would have not been able to install it.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Pricey but fair

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    Posted . Owned for 1 year when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Its a great quality aio for the price. It has a phenomenal copper cold plate and a great pump to go along with it. It does have a thread ripper mounting plate but kts horrible for cooling down threadriller.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    great part

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    Posted . Owned for more than 2 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    best buy is always competitive for electronics, happy to have availability and prompt delivery of this part

    I would recommend this to a friend
  • Pros mentioned:
    Cooling

    Rated 2 out of 5 stars

    AIO YE

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    Posted . Owned for 11 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    ehhhhhhh, thats all this cooler gets. corsair also makes 360mm radiators that are soooo AMAZING THO SO IF U WANT A CORSAIR RAID DEFF GET A 360MM if your case can fit it in.. ive personally have sold it and got the new capellix and its hands down the best aio ive use and this is coming from someone that builds pcs ALOT as a hobby i do it locally for customers and build AMAZIG machines that and the ek ones are awesome...

    I would recommend this to a friend