Thermaltake Core V21 Review – An Original Design!

Thermaltake Core V21 It is almost a box in appearance. Thermaltake Core V21 Review. Is Thermaltake Core V21, which attracts attention with its square structure, useful?

With the Thermaltake Core V21, we are looking at another budget offshoot. The cubic case comes in the Micro-ATX standard and offers, among other things the possibility of stacking two cases of this model on top of each other. For this, too, the manufacturer’s logo is attached magnetically to the front and can be rotated accordingly. Which features and properties the Core V21 keeps hidden is clarified in the test report. Have fun while reading.

The specifications

As is often the case with housings, the case is packed in a brown cardboard box. The scope of delivery consists of the housing and a small accessory package that contains screws, cable ties, and operating instructions.

Impressions outside

The Thermaltake Core V21 has been given a cubic design, which is adorned by a large front made of mesh. The grille is rounded both at the top and the bottom so that the front can flow smoothly into the chassis. In the center of the front, you can see the Thermaltake logo, which is attached magnetically and can therefore be rotated.

The background for this is a special feature that allows the user to put a second Thermaltake Core V21 on top of the first and thus expand the space. However, since the housing is then on the left, it makes sense to rotate the logo as well. The manufacturer does not have an external 5.25 “drive. The front panel can be found on the left side of the front, which is equipped with dual USB 3.0 and HD audio sockets. The power and reset buttons are also there housed.

Both side panels of the Thermaltake Core V21 are removable, but as usual, there are not just two but four. This means, for example, that the window on the left side can be swapped for the right side or, when using a 2nd Thermaltake Core V21, the floor can be placed on the left side. This gives the user certain freedom of choice.

In addition to the window side panel on the left, there are two side panels with mesh inserts on the top and right. These are equipped with magnetically attached dust filters. There is also a filter behind the front and under the power supply unit. The case gets its firm stand from four round feet with a kind of foam pad underneath. On the back you can see what the inner layout looks like before you open it – but more on that on the following page.

Impressions inside

Thermaltake relies on a lying mainboard tray and packs the power supply and some data carriers underneath. The cube design is of course ideal for this and another advantage is the better heat dissipation. As heat rises, it can escape directly through the upper panel with the mesh grid. The 200mm front fan then provides the necessary airflow in the housing.

But it shouldn’t stay that way, the Thermaltake Core V21 offers several options to accommodate multiple fans. In the rear, there is space for a 120mm or 140mm fan. Built-in rails make it possible to install either two 140mm fans and 2x 120mm fans or up to four 120mm fans under the cover. If you decide to move the window side part upwards, you can also attach the rails to the sides and install 2x 120mm or 140mm fans on each side. There would also be space for 2x 120mm on the floor. The 200mm fan in the front can also be replaced with two 120 / 140mm fans.

So if you have the necessary change for fans, you can equip the case with a lot of fans and turn it into a cooling monster. The housing also offers space for various radiator sizes for water cooling. We have inserted a graphic for you below that shows which models are possible. In addition to self-built WaKü systems, AiO systems also fit into the housing, depending on the radiator size. For example a 240mm model with the radiator in the lid.

How it looks with the temperatures and the volume can be read later. For storage media, the Thermaltake Core V21 offers an HDD cage for 3x 3.5 “and 2.5” data carriers as well as three separate slots for 2.5 “SSDs or HDDs.

After the impressions of the design and the internal layout, the installation of the test hardware continues.

Hardware installation

For the installation of the hardware, we removed all side parts, i.e. top, bottom, right, and left, in the first step. This gave us the best access to the inside and was able to install the hardware without any problems. The panels are removed by thumbscrews, i.e. without tools.

We started with the power supply, which is inserted from below and screwed tight. The cables were then led up through the cutout in the mainboard tray. Since the sheet steel comes directly above the power supply unit, the PSU should be installed with the fan facing downwards. The dust filter ensures a clean air supply. The hard disk is housed in the HDD cage, there are three “brackets” for this. The data carrier is simply clamped there and guided into the holding frame. There it sits decoupled and permanently installed.

In addition to the cage, the Thermaltake Core V21 offers three additional slots for 2.5 “data carriers, primarily intended for SSDs. Here, too, the data carrier is simply pushed in and then sits firmly in the holder. In total, the case can accommodate up to six storage media. Before the mainboard is installed, the back panel cover should be inserted. After that, the mainboard can be inserted and screwed in. This is extremely easy thanks to the mainboard tray and the free access on three sides.

Before we finally insert the graphics card, all components were wired. Here, too, the great freedom was noticed positively, it is accordingly easier to lay cables if you can get almost anywhere. To install the pixel accelerator, a plastic cover over the expansion slots must be removed, then the card can be inserted.

Thanks to a slight division into an upper and lower chamber, great cable management is possible, the unused cables can be easily stowed in the lower area. Now that the hardware is installed, we continue with the benchmarks and our practice test.


It doesn’t always have to be expensive to have a stylish and high-performance case for your hardware. Thermaltake shows this with the Thermaltake Core V21, a cube for Micro-ATX mainboards with plenty of space. The workmanship is okay and is of high quality, there are no noticeable defects. Inside there is a lot of space for great hardware, lots of fan spaces in the lid, rear, bottom as well as the front and the side panels.

The installation went very well, especially since the four removable side panels give users wonderful access to the inside. The assembly worked partly without tools, the mainboard or the graphics card still had to be attached with screws. The side panels, on the other hand, are fortunately attached with thumbscrews. We were a bit surprised by the results of the temperature measurements, while the CPU and the hard disk achieved good values, the graphics card, and the mainboard showed a slightly worse result. Both of the first-mentioned components can dissipate the heat better than the pixel accelerator and the motherboard. We recommend an additional fan in the rear and in the lid. The results in the volume test were overall convincing. Another special feature: if you have two Thermaltake Core V21, you can stack them both on top of each other and get an ultimate tower for even more hardware.

At a price of around 55 EUR, the user gets a recommendable cube case in Micro-ATX format, which is well made, is incredibly accessible, and has a lot of cooling potential. A few more fans and the case becomes the perfect model for compact systems. If you can’t get used to the cube design, there is still the Versa H15 from Thermaltake. The Antec P50 Window is similar to the Thermaltake Core V21. The Thermaltake Core X2 is a bit more massive and has more features.

Thermaltake Core General Summary

Thermaltake Core To summarize, we see that it has very good features in terms of design, price and performance. Thermaltake Core, 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 Thermaltake Core 2-year warranty, it continues to support any problem after the sale and does not suffer the user.

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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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