Deepcool, like many PC hardware companies these days, covers a wide variety of products ranging from cases, power supplies, laptop accessories, and of course as the name implies a full range of cooling products. Deepcool also has a premium brand that they call Gamer Storm. I recently had their latest water cooling solution come in, the Gamer Storm Castle 280EX. Their Castle EX line of AIO’s isn’t new, but this new size configuration is new to the lineup and more importantly, this is the first time I will be checking out a Deepcool AIO. With that, I am excited to see what they do differently and how it performs!

Product Name: Deepcool Gamer Storm Castle 280EX

Review Sample Provided by: Deepcool

Written by: Wes Compton

Amazon Affiliate Link: HERE



Sockets Supported





Radiator Dimensions

322×138×27 mm

Radiator Material


Net Weight

1600 g

Tube length

380 mm

Pump Dimensions

86×75×71 mm

Pump Speed

2550 RPM±10%

Pump Noise

17.8 dB(A)

Pump Connector


Pump Rated Voltage

12 VDC

Pump Rated Current

0.2 A

Pump Power Consumption

2.4 W

Fan Dimensions

140×140×25 mm

Fan Speed

400~1600 RPM±10%

Fan Airflow

97.03 CFM

Fan Air Pressure

2.00 mmAq

Fan Noise

≤39.8 dB(A)

Fan Connector

4-pin PWM

Bearing Type

Hydro Bearing

Fan Rated Voltage

12 VDC

Fan Rated Current

0.3 A

Fan Power Consumption

3.6 W

LED Type

Addressable RGB LED

LED Connector


LED Rated Voltage


LED Power Consumption

2.25 WPUMP



Photos and Features

The packaging for the Castle 280Ex is in a grey and green theme which I don’t think I’ve ever seen before. It’s a nice change from everything having a black background that’s is for sure and the green is unique enough to stand out. The front of the box has a picture of the cooler on it with the pump lit up in RGB as well. Being able to see what you are getting right on the front is huge and this covers a few of the key features like the boxed ends on the radiator, the RGB on the pump including the ring on the outside, and the black non-RGB fans. They use the Gamer Storm branding in the top left and have the model name in the bottom right but the model name could be a little larger. You can tell the main focus is to show off the Anti-Leak tech which is the biggest font and up in the top right. Around on the back, I love that they have line drawings and dimensions of each of the components as well as a specification listing. There is a short feature list that is repeated over and over on the rest of the back as well. Then when you open things up you have a sheet of foam up on top and then under it, everything is placed in foam with cutouts to keep everything safe and not moving. I would say the packaging is good, the foam is more protective than what the normal cardboard that most AIOs get but I did receive our first 280EX and the radiator was bent badly so damage is still possible if the shipper trys hard enough.

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Inside there is a white box where they have packed all of the hardware and the instructions are tucked nearby as well. The instructions are black and white with line drawings covering installation on all of the different sockets. Inside of the box, Deepcool has everything bagged up in small baggies with labels letting you know what is for Intel and what is for AMD and to set things like the screw for 2011 apart which helps a lot. There is also a bag of cables that give you a cable for hooking into motherboard RGB lighting or a SATA powered controller with buttons that let you flip through its lighting effects. There is also a metal case badge and a piece of double-sided sticky tape for installation.

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So the 280EX is a dual 140mm fan AIO and it is interesting that with this being an RGB AIO they didn’t end up including RGB fans as well. What the 280EX comes with are Gamer Storm TF140S fans. They are all black with 9 blades. They do have an interesting accent added to the flat black finish on the end of each blade with a gloss black design. They also have the Gamer Storm mask logo on the middle of each of the fans. The TF140S’s have rubber pads on each of the corners on the back to help with vibration. The side profile is also unique with more of the triangular design, only with depth this time in the ring around the fan along with Gamer Storm branding on the bottom edge as well.

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The main part of an AIO cooler like the Castle 280EX is the pump design. Radiators do have their own innovations (and the 280EX has one I’m going to talk about) but what sets an AIO apart from most custom water cooling kits is the pump that is combined with the water block and of course everything shipping altogether. The Castle 280EX’s pump block does things a little differently than most, partially because they don’t stick with the main OEMs that everyone else does with to avoid litigation. So the housing is round with a mid-silver finish and up on top a tinted mirror finish. The top of the pump is removable, taking it off shows off the white translucent casing where the addressable RGB LEDs are tucked under. The translucent design helps defuse the lighting out to a wider area and the cap on top lets you look in and see the lighting. They have a quarter-sized cap inside with the Gamer Storm logo on it, but a blank cap was also included. When the lighting is on this shows the logo but with the extra one you can go with no logo or if you can cut a sticker you could add your own logo. The RGB lighting also slips out around the outside edge as well, just under where the cap goes on. The two hoses attach near the bottom of the pump and they are turntable to let you adjust where you want the water lines to run.

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The bottom of the pump comes with thermal paste pre-applied in a square which makes installation a little easier. But if you need to remove the AIO later you will have to provide your own paste. The contact surface isn’t a mirror finish, it has more of a matte finish.

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I like the look of the radiator that Gamer Storm went with. It is an aluminum radiator, like other AIOs which means mixed metals with the waterblock. But they didn’t stick with the standard OEM radiator that has the bubbled ends. I like the boxed ends on this radiator design, it looks more like the newer custom radiators designs were the other AIOs use a radiator that is closer to the older custom loop radiators. The fin spacing has four folds in a centimeter which is relatively open and doesn’t require a high static pressure fan to blow through. Everything is blacked out including the radiator fins. Both of the water lines are down on one end. Next to them, there is also a fill port that is sealed up. That same end has a plastic cap on the top, this is part of the “Anti-leak” system, that the Castel 280EX has. They have an air-filled diaphragm inside. The idea is that when things heat up the water expands and pressure goes up. The diaphragm can absorb some of that pressure, regulating it, keeping the pressure off of the lines which with AIOs tend to lose small amounts of water over time. This is the main cause for AIOs to fail, not to mention it also causes bigger leaks to pop up sometimes as well which can cause significant damage to the rest of your system. It is very hard to say how this configuration will hold up long term, but it is an interesting design that at least on paper makes sense. I will say that our other Castle 280EX that was damaged in shipping didn’t leak, even with its significant damage. But like I said beyond that, only time will tell.

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The two lines are made of a mix of IIR or a mostly synthetic rubber and regular rubber and then it is covered in a tight sleeving that gives it additional strength. This avoids using the harder coatings on the inside that can cause the tubes to be stiff, so they are very flexible.

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The Castle 280EX kit comes with eight long black screws for attaching the two 140mm fans to the radiator and another set of short black screws to attach the radiator to your case. With the fans attached and without the pump being powered up to show off the RGB lighting the kit is clean looking with everything except the pump being blacked out and the small glossy accents on the fans. The pump then has that semi mirror finish and in the right lighting, you can see the Gamer Storm logo peeking through.

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Now to install the kit to your CPU socket there are different instructions for each CPU socket. For our testing I needed AM4 and this meant using the AMD bracket which is designed to work with both AM3 and AM4. The brackets install from the bottom of the pump with two screws. I was surprised with the attention to detail by using black screws to attach the fans and the radiator to the case that they ended up using nickel-plated brackets. Black would look much better. Then for AM4 once you have the brackets on you have to screw the included standoffs into the stock AM4 backplate. This design works well, but because the backplate sticks up through the motherboard holes it will be loose. Lots of companies use this design and it works, but always seems weird. You then install the pump in the orientation that you prefer and use the top thumbnuts to tighten things down. The bracket on the pump can be flipped both horizontal or vertical to orientate it wherever you want the lines. The logo inside can also be flipped to make sure it is correct after so don’t worry about it as much.

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You have to hook up the two fans and the pump fan header that lets your motherboard know the pumps RPM and powers the pump. Then for the lighting, you can use the motherboard adapter to tie everything into your motherboard software and this is what I would recommend if you have other lighting already, but keep in mind you need to have an addressable LED header, not just the older four-pin RGB header. You can also use the included controller which needs a SATA power plugged in. For testing, I used that so I could check out the lighting effects. It has three buttons, the top and bottom let you flip through the lighting effects and the middle button controls the effect speed. Holding the middle button for three seconds also lets you turn the lighting on or off.

So you get five different effects in total. There is Dynamic, Statis, Breathing, Comet, and Fashion Collision. When flipping through, it also gives you multiple color options. So for static, breathing, and comet, those are single color options, you get Red, Orange, Yellow, Green, Light Blue, Dark Blue, Pink/Purple, and White. Statis is a solid color, breathing goes from dark to on slowly, and comet has a light that spins around the circle fast with a trail that is slower to go away. Fashion Collision is where you get the full RGB spectrum spinning in a circle for one, then they paired up matching colors together and did a comet-like effect with one with a background color. Then the Dynamic effect is basically the breathing, but it switches from color to color each time it breaths.

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Test Configuration and Procedures

Testing Hardware

Affiliate Link/

Current Pricing


Primochill Wetbench



Asus Crosshair VIII HERO WiFi



AMD Ryzen 9 3900X


AMD Ryzen 5 3600X


AMD Ryzen 5 3400G



G.Skill Trident Z Royal 3600MHz 16-16-16-36


Power Supply

Corsair AX1200w


Thermal Paste

Noctua NT-H2



Corsair MP600 2TB



Windows 10 Pro





Cooling Performance

For performance testing, I ran the Castle 280EX through our standard set of tests which include stock fan speed and 100% fan speed tests using three different load types on three different CPUs. The idea is to see how it performs in different situations. Because of the way Ryzen throttles, for two of the loads, I also keep track of the clock speeds as well. Starting with the most demanding load, AIDA64’s Stress Test on the FPU setting. When compared with the H100i the performance was the same on the 3900X and the larger dual 140mm radiator helped cool the 3600X down one degree lower with the stock clock speeds. Then on the 3400G APU things ran two degrees lower on both tests.


The FPU test is always the most extreme but the AIDA64 Stress Test using the CPU setting is a lot more realistic to what you will see in normal use unless you are rendering. Here the Castle 280EX edged out a degree on the H100i on the 2900X and three degrees in both of the 3400G tests. More importantly, these temperatures weren’t high enough to cause the CPU from getting its best possible clock speeds.


The last test is similar to the FPU load. For this one, I use Blender to render 3D scenes. This isn’t a synthetic load and you can see that for the 3900X with the stock fan profile the larger radiator and fans dropped the temperature a degree. Same with on the 3600X on both tests. Then for the 3400G, the stock profile dropped 3 degrees and 2 on the 100% fan speed.



Noise Testing and Fitment

Of course, cooling performance is important, but it isn’t the only thing to keep in mind when picking out your cooling. Fitment is important in smaller builds and noise is important at least to some people, myself included. Now for the fit, I can’t test the Castle 280EX in every case. What I have done is just kept track of the fit of all of the air coolers and AIOs tested so far. AIOs in general are large, but smaller cases that are designed to fit them can effectively use the space. The 280EX specifically is more likely for larger cases that use 140mm fans. The design means memory fitment isn’t an issue, the pump doesn’t hang over past the CPU socket but I will say that the pump is especially tall. Just comparing with the H100i, it is almost twice the height. So keep that in mind, it shouldn’t be an issue in anything but SFF cases at least.


Then for noise testing, I ran three tests using our decibel meter setup 18 inches away from our open-air test bench. I tested the noise with the fans and the pump set to 100% fans peed, 50% fan speed, and for the third test, I ran the test while doing the CPU load test in AIDA54 when I tested with the 3900X. The last test gives us a look at the overall noise level you should expect in normal use. Both of the AIOs are a lot louder than the air coolers I tested but the 280EX did a good job in the load test and was quieter than the H100i in all three tests so I would still consider it loud but less loud than some other AIOs.



Overall and Final Verdict

So with testing done and having taken a look at the Gamer Storm Castle 280EX, what is the conclusion? Well, Deepcools gaming brand isn’t just following the standard OEM out of the box solution for an AIO and I think that in itself is great. There are so many other AIOs that are cloned of themselves with a few small changes, it’s great to see something different. Being a dual 140mm AIO, the cooling performance as good as you would expect. What I was surprised with was just how good the addressable RGB lighting ended up looking. This might be a little too much for some people, and I don’t blame you, but if you are going to have RGB lighting this looks better than what Corsair ended up going with on the H100i RGB Pro XT that I recently took a look at. Through I think if you are going to go crazy with it, fans to match would match better. I also think the customization with the insert that can be put in the top of the pump is cool too if you can add your own sticker to it.

There were small details like the mounting brackets being chrome that didn’t match everything else is blacked out. I also have to say that while a little quieter than the H100i, when you compare with the air cooling the noise performance still isn’t there. The pump is also extremely tall as well, partially because of the RGB section on top.

Overall though, the Castle 280EX does offer the market variety in designs and solid performance as well. Their Anti Leak technology is interesting and at least on paper makes sense but only time will tell for sure on that one. As for pricing, the Castle 280EX has an MSRP of $149.99. Digging around on Newegg for other 280mm AIO coolers they start at $120 but adding RGB to the pump quickly brings the price up from $140 to $200 through the H115i RGB Pro XT being on the low side of that does give the Castle 280EX a lot of competition. The extra $10 will get you a bigger RGB setup on the pump as well as the customization but performance should be similar.


Live Pricing: HERE

Author Bio
Author: garfi3ldWebsite:
You might call him obsessed or just a hardcore geek. Wes's obsession with gaming hardware and gadgets isn't anything new, he could be found taking things apart even as a child. When not poking around in PC's he can be found playing League of Legends, Awesomenauts, or Civilization 5 or watching a wide variety of TV shows and Movies. A car guy at heart, the same things that draw him into tweaking cars apply when building good looking fast computers. If you are interested in writing for Wes here at LanOC you can reach out to him directly using our contact form.

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