Corsair 4000D Airflow Review

With the Corsair 4000D Airflow, the US company is now also presenting housing in the midi tower segment, which is becoming increasingly important again. With a very reasonable price structure, paired with many equipment features as well as a stylish and high-quality look and “functioning” ventilation, you want to accommodate all of that here. In addition to the above, the Corsair 4000X RGB is also presented, which takes a different approach, but is not the focus of this article …


As already mentioned in the introduction, Corsair would like to (or again) offer a midi tower that has a tooling basis, but also allows several concepts and as a result, there will also be several variants on the market. With the 4000D Airflow, we have taken the model in front of our chest, which in its basic orientation appears to be minimalist but still offers many possibilities. If you look around a little, the local model with its almost 88 euros falls into a price range that currently seems to be highly competitive. As an opponent, you can of course be quiet! Pure base DX, the Lancool 2 mesh, or even the Fractal Design Meshify C call.

Despite the supposed orientation, the “trend” is gratifying that you no longer necessarily need a huge block as housing to accommodate and cool a high-performance system in the housing. This is also how the approach with the 4000D Airflow should be considered. The 4000D (without Airflow suffix) has a closed front and relies more on puristic design. The Corsair 4000X RGB, on the other hand, has dedicated itself entirely to lighting, which we will introduce in a separate article.


 The housing at a glance
Mainboard format (s) Mini-ITX, Micro-ATX, ATX, E-ATX (305 x 277mm)
designation Corsair 4000D Airflow
Form factor Midi tower
Price housing 87.90 EUR
Manufacturer homepage
Other key data
Drives 2 x 3.5 inches
4 x 2.5 inches
Fan  Front:
 3x 120mm / 2x 140mm ( 1x 120mm pre-installed )
1x 120mm( 1x 120mm pre-installed )
2x 120mm / 2x 140mm
Radiator support  Front:
 360mm, 280mm, 240mm, 140mm, 120mm,  280mm, 240mm
max.CPU cooler height 170 mm
max.GPU length 360 mm
max. power supply length 180 mm
Material housing Steel, plastic, glass
Weight 7.9 kg
Dimensions 453 x 230 x 466 mm (L x W x H)
Others Tempered glass side panel (tinted)
1x USB 3.0, 1x USB 3.1 Type-C
ARGB controller
Colors  Black-and-white

Impressions outside

The external design of the 4000D Airflow is explained quite quickly. A very subtle and, for many, finally a stylish design, paired here with sensible functions. Let’s start with the front. Our test sample is delivered as an “Airflow version”. If you want the front closed, you can also use the classic CorsairBuy 4000D, the price remains the same in both cases. If someone wonders if the photo editing wasn’t quite “right”, no, the side panel is really that dark. That really makes a lot more than what pictures can convey. Also, the side part itself is of high quality and also provided with a frame so that any slots in the chassis cannot be made out. The front is really open and not only draws in air through the closely-meshed triangles but also past this panel. I’ll go into more of this later in the article.

Fortunately, the IO-Panel features the latest technology in the form of a USB 3.0 Type-A and a USB 3.1 Type-C connector. The correspondingly compact connector for the mainboard is of course also available. If you value it here, you should check whether the corresponding remote station is also available on the mainboard, namely not on our MSI MPG X570 Gaming Edge WiFi … Small color details that do not offer any added value are also worth mentioning, but illustrate the consistency with which you currently own your own Products developed. Among other things, on the USB connector, the dust cover, or the knurled screws on the back, there are small yellow accents everywhere. The grid mentioned is simple and is held in place using magnetic strips. The same can also be found at quiet Pure Base 500 or DX as well as some fractal design cases. The little yellow tip also has the function of being able to simply touch it and lift the grille.

Nothing spectacular can be found on the bottom. The four feet, which do not have a great dampening function, are firmly screwed to the chassis. In between, there is a small dust protection grille that is responsible for the power supply unit, provided that it is mounted in such a way that it should draw in “fresh air” from below. Speaking of the power supply unit, a separate frame for the previous assembly preparation, as is also the case with being quiet! does not exist here. The electricity supplier has to be pushed in from the side, but we’ll get to that in the next few pages.

Overall, the Corsair 4000D Airflow makes a very high quality, noble, and also adult impression. I mean that as it is written because one or the other will surely have already noticed that too much gimmick was built into many offshoots of this genre …

Impressions inside

Let’s come to the interior, which was basically designed in the same straight line as the exterior suggests – and that is by no means to be rated negatively. On the contrary, there is more than enough space to install even the largest components. The CPU cooler has a total height of 170mm and the graphics card length should also fit a new GeForce RTX 3090 (313mm) into the 4000D, since a maximum of 360mm is available. The length of the power supply is a little more limited and components must not exceed 180mm. But it is also gratifying that it can even accommodate E-ATX mainboards. So nothing stands in the way of a high-performance system in this supposedly compact housing.

There are a good number of fan slots. In total, up to six 120mm fans can be installed. 140mm versions can also be accommodated in the front and top. The same interplay then logically takes place with the radiators or all-in-one solutions. If you look at the back, the first thing you notice is the large tray opening under which the two 2.5 inch holding frames are located. The corresponding drives are screwed onto it and then attached to the chassis frame. Then there is a novelty that Corsair has fully christened “RadipRoute” cable management, well other manufacturers (e.g. NZXT) have had such plastic guides for several years, but laudable that such a solution is now also available in the new Corsair-Models made it. Also, you can now attach your cable harnesses with Velco strips and ensure a tidy back. Incidentally, additional items are also included in the scope of delivery.

Let’s stay briefly with cable management, this can be implemented sensibly, as there are sufficient openings on the primary and secondary sides. For example, the large vertical slot enables the ATX line to be laid easily. But the small cable feeds can also be laid very easily through one of the many openings. Overall, the case can be said to have a very good concept that shows no weaknesses in this regard.

The lower HDD slot can also be adjusted to the side to create more space for the power supply. However, there is a really nasty problem here which, to put it mildly, could be called a fail. As should be known, the knurled screws are often screwed on with torque in the factories, so you have to use a screwdriver at home to be able to loosen them at all during the initial assembly. But it gets stupid if you can’t get there and first have to loosen the screws with water pump pliers or similar. That is pretty much the only point that we can chalk on in the area of ​​the interior.

The front is pleasantly easy to use and can be easily removed, for example, to screw on the hardware, or just to clean the dust protection filter. The metal grille front is attached to four holding points and can be easily removed. The same also applies to the dust grille described or located behind it.

It is also nice to see that the front openings for the fans have been matched exactly to this, but only for the 120mm versions. As I said, 140mm versions can also be built-in, but then pull past the frame and possibly generate additional noises. The same can then possibly also be reproduced for radiator-fan constellations …

Two models arrive at the customer as fans, which do not disclose any further information. Corsair only speaks of the “AirGuide technology” and an “exceptional cooling performance”. In the test, it was found that the fans work at around 1250 revolutions. Well, we were excited about the practical test, but first, the hardware is installed.

Hardware installation

If you look at the assembled result, you will notice the understatement, which I already mentioned at the beginning of the article. Maybe an argument for many potentials (older?) Buyers. The tinted side window really takes a hell of a lot of views out of the case and only shows a few color accents in the dark. The assembly itself went without any real problems.

Unfortunately, the MSI RX 5700 XT is already sagging badly, but this can be seen as a peculiarity of the graphics card. Otherwise, you can’t say much in connection with the housing and the fully assembled system, except that everything could be installed very clean, structured, and uncompromising. But let’s take another look at the back.

Unfortunately, the MSI RX 5700 XT is already sagging badly, but this can be seen as a peculiarity of the graphics card. Otherwise, you can’t say much in connection with the housing and the fully assembled system, except that everything could be installed very clean, structured, and uncompromising. But let’s take another look at the back.

The 2.5-inch drives can be mounted on one of the two brackets on the back of the chassis, for example, or in the HDD cage in the PSU tunnel. Here I had already criticized the fact that the knurled screws are too tight on the page before, which can be seen as a real (if perhaps) small drawback. In the case of the setup shown, the said HDD cage was moved one position to the side to be able to get more space for the power supply cables. In between, it is already building up. You should also have connected all cables before the final assembly of the power supplier, otherwise, it will work out in a nasty fiddling.

Water cooling compatibility

If you want to build in water cooling and don’t necessarily rely on a complex custom loop, you can also easily install a 360 radiator in the front. The prerequisite for this, however, is that the HDD frame in the PSU tunnel has not been moved forward. Also, the thickness of the heat exchanger must not exceed 30mm, then that was it with the compatibility.

The problem-free installation of 140mm fans should also be mentioned, if you want to use 280mm AiOs, for example. However, the rotor blades then no longer sit exactly in the cutouts as is the case with the 120mm fans.

Installation in the top area is of course also possible, but always with certain restrictions. Fortunately, the radiator can be mounted slightly offset, otherwise, it can lead to complications with the mainboard or the RAM. A measurement in advance of the purchase is therefore strongly recommended.

Test system presented

Our case tests are carried out according to a standardized principle. How we test can be read as usual in our case test system. In this way, it is possible to compare all test reports in the area of ​​housings.

AMD Ryzen ATX case setup

Processor: AMD Ryzen 7 2700X
Mainboard: MSI MPG X570 Gaming Edge WiFi
Storage: OCZ Vector 180 – 240GB
Cooling: be quiet Dark Rock 4
RAM : 2x8GB HyperX Fury RGB DDR4-3200
Power supply : be quiet! Straight Power 11 650W
Graphics card : MSI Radeon RX 5700 XT Gaming X
Operating system: Windows 10
Graphics driver: Adrenaline 11/19/1

Temperature measurement

To show the thermal capabilities of housing, we have documented two load scenarios or rather two ways of looking at them. Basically, the combination of Furmark (@ 1024 x 768px – nonfullscreen) + Prime95 “Custom” (with 8 threads, see screenshot) is used simultaneously, which in turn represents a very good mix of system utilization and practical relevance.

  • Measurement 1: Maximum speed
  • Measurement 2: 800 rpm (the value is set in the mainboard BIOS)

This process will now run for 20 minutes. Once we record the Average value (AVG) over the 20 minutes and in a separate process the Delta T value, i.e. the difference between the measured value and the room temperature. After completing the measurement process, the values ​​are read from AIDA 64. The unit of measurement is logically set to degrees Celsius. Of course, the method used is not immune to measurement tolerances, which means that fluctuations in the range of 0.5 degrees Celsius in the measured temperatures are possible.


Volume measurement

A ” PCE 318 ” sound level meter is used for measurement. This is screwed onto a tripod and records the volume 50cm away from the left side of the housing. The measuring room we use is below 30 decibels base volume and is subjectively assessed, to be described with absolute silence. To have a starting point, the values ​​of the open structure were measured at the beginning, i.e. on a bench table. These will follow later in the first reports and will remain permanently in the overview.

Overall rating

The overall rating is a summary of all temperatures and measured values. In total, this results in a performance indicator about the cooling capacity of each housing. We are currently endeavoring to fill in the basis of comparison so that all values ​​determined are also about one another.

In our overall rating, the case is in the middle of the range of devices we have tested so far, at least when the fan speeds are significantly reduced (800 rpm). But if they run at full speed you slowly move into the upper third of the text field and get good to very good values. The real opponent in our statistics is the Pure Base 500 DX, which comes with three 140mm fans, whereas the Corsair only has two 120mm versions.

When it comes to average temperatures, the 4000D at 800 rpm is on par with the Lian Li O11 Dynamic XL with six built-in fans and can almost catch up with the Cooler Master SL600M or in the range of the Pure Base at full speed, DX penetrate, but still not quite keep up. Overall, however, a very convincing cooling performance, as there are only two 120mm versions in the housing.

Volume measurement

The volume is measured from a distance of 50cm, aiming at the center of the left side panel. Basically, nothing more needs to be said about the volume measurement, the values ​​speak absolute volumes and cause a bit of positive astonishment. If you turn down the fan and adjust the other components of the system, this is de facto no longer audible. Really good.

Even at full speed, which shouldn’t appear that often thanks to the PWM control, the 4000D in the standard version is one of the quietest we have ever had on the test bench. As we have just written, the values ​​speak for themselves in this case.

Temperature measurement 800 rpm

Admittedly, at the beginning of the test, I was a bit worried that the temperature values ​​for the individual components would end up in the red limit areas. However, this did not happen under any circumstances, even with reduced fan speed everything stays in the green area and can sometimes achieve top results. A very surprising twist, if you also consider that additional fans could provide a significant increase in cooling performance.

The average values ​​reflect what has been described even more clearly and also show a positive picture when it comes to running the installed PC parts cool and efficiently.

Temperature measurement max. rpm

From a purely subjective point of view, the full-load operation is never recommended, as the temperatures develop in a very positive way, but the noise development changes in a negative way. If you don’t care, you can expect a potent case-fan combination in the basic configuration, which is ultimately reflected in the temperatures. All in all, it is uncomplicated to use with enough leeway for individual adaptation – very pleasing!


Admittedly, I am surprised that the Corsair D4000 Airflow does not appear at first glance to be what it turned out to be in the end. The case in this version is very chic, grown-up, and, above all, very elegant. Also, the quality of workmanship is right in all areas and as a customer, you get an almost flawless case. Apart from a really small thing that can be safely put down in the production, you cannot chalk anything out on the 4000D in the Airflow version.

The case also combines simple elegance with very good cooling performance, measured by the size of the chassis, of course, and that without looking like gym shorts as we know it from other representatives of this genre. On the contrary, the tempered glass side panel is so heavily tinted that you cannot even see the hardware if the lighting is not integrated. Adult hobbyist heart what more could you want (…)? The cooling performance is also absolutely right, the only two pre-installed and 120mm fans work quietly if adjusted, and still bring a convincing performance to the field.

If you look at the price now, it doesn’t tear your feet away. The 87 euros (RRP) appear to be very reasonable in this case. If necessary, the street price will be a bit more attractive, then the customer is spoiled for choice in this segment: The Lian Li Lancool IIbe quiet Pure Base 500 DX, Fractal Define Meshify C, or the aforementioned Corsair 4000D Airflow. We give it a clear buy recommendation.


Corsair 4000D Airflow

High-quality case with a puristic design and good price structure, 09/15/2020


  • high-quality workmanship & high-quality appearance
  • the well-the thought-out overall concept
  • small but fine details
  • USB 3.0 & 3.1 Type-C connector
  • sufficient space on the back of the housing
  • Cable management optimizations
  • amazingly good cooling performance
  • very quiet when the fan speed is regulated


  • The positioning of the thumbscrews on the HDD cage is suboptimal
  • no HDD decoupling

Corsair 4000D General Summary

Corsair 4000D To summarize, we see that it has very good features in terms of design, price and performance. Corsair 4000D, which has given a successful performance compared to its competitors in this segment, has not received any serious complaints from its users until now and has given its users confidence with maximum positive feedback. With the Corsair 4000D 2-year warranty, it continues to support any problem after the sale and does not suffer the user.

Want to win? Corsair 4000D

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Installation of the Product is Extremely Simple. You can set it up easily with the included Guide.

Has no known chronic problems.

Yes, they say they are generally satisfied.

The minimum warranty period is 2 years.

You can buy it from sites like amazon, ebay.

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