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Thermaltake - Core V21 MicroATX Mini Tower Case

( 4.5 Average / 95 Ratings )





Core V21

Part #





MicroATX Mini Tower

Includes Power Supply


Internal 2.5" Bays


Internal 3.5" Bays


Motherboard Compatibility

Micro ATX, Mini ITX

Front Panel USB 3.0 Ports


Maximum Video Card Length

350 mm / 13.78"


424 mm x 320 mm x 336 mm

Completed Builds Using This Part

See All Completed Builds


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Price History (Excluding Tax) History:


jimsbond_008 8 points 49 months ago
from completed build Blue Hydralisk

This is a great mATX case! Doesn't look or feel cheap at all.

The power button has a great tactile feedback when pressed and the front I/O is relocatable depending on your orientation.

The 200mm front intake fan can only be heard when you put your ear next to it otherwise it is inaudible.

There is some flex on the panels but nothing to be too concerned about really.

You already know the modularity options that this case offers so I wont touch on that.

I suggest you install the power supply first of all. Make sure you have all the cables you need already attached to the PSU as making connections to the PSU with it already installed is quite the challenge, doable but could be difficult if you have normal to large sized hands. The manual would say that you install the power supply then its bracket but hooking the bracket with the unit already in is impossible. So, you need to hook first the "L-bracket" (that supports the front of the PSU preventing it from direct contact with the bottom panel) then cradle the PSU on it and slide your PSU to mount.

The modular railings that enables you to install your rads and/or fans on any side can be very difficult to remove the first time.

I'm trying to find a major flaw in this case from Thermaltake but so far I don't see any.

If you are on the market for an mATX case that doesn't shout "GAMER" nor break the bank, this case certainly deserves consideration.

schollz 7 points 48 months ago
from completed build Home Server

I really like this case - its so nice to be able to remove all the panels from every direction and orient the case in any orientation. I think it has really helped with keeping my cables from turning into a rats nest.

That being said, the PSU installation was not so simple. The directions are extremely concise, which is okay, except it took me about a half hour to figure out how to"Secure the bracket with the case by locking hook". It turns out the hole for the locking hook was nearly impossible to find. I eventually found it between the PSU and the HDD panel which in no way represents the accompanying figure.

Still, I would totally buy this case again! Its pretty well constructed, sturdy, and makes for a really clean build! I recommend.

tekudriger 16 points 46 months ago
from completed build Tachikaze

I wanted a small form factor case that had plenty of ventilation + filter. Also to have plenty of air flow space. This case had it all and I am very satisfy with this case.

blitztwist 8 points 45 months ago
from completed build Lil Microwave

Great Case with a ton of customization options. It will fit pretty much everything you want to put in it, along with more fans than you know what to do with. Its allows for tower and sideways builds. It does feel a little cheap and is a little on the larger side but my favorite case that I have owned.

mike9409 16 points 41 months ago

Cable management dream. Very good design. Love the customization options with the interchangeable panels. Leads to some creative builds, I must say.

4x240 radiator support is great for both AIO coolers and custom loops.

Window is a little scratch-prone and a bit of a fingerprint magnet. Keep the plastic vover on until you're 100% done.

raven70 25 points 41 months ago

Taken directly from my build:

I just kept reading good reviews and liked the flexibility it offered. You can read about several folks on here that use this case. There are two issues with this case that are not necessarily bad, but folks should be aware of going in. First, it is a loud case. Two sides are basically just mesh screens. There is no sound proofing. It will be as loud as whatever fans you put in it.

Second, because it is so open, you can’t really create any positive or negative pressure in the case. The best you can hope for is to move a lot of air in the case. That is pretty much what I did.

What I did like about this case was how I could move the panels around, as well as the front switch and plugs to a position that worked for me. There are only 2 USB 3 ports in the front, and no space for an optical drive. Just something to be aware of going in. For my situation, my son has a desk with a cabinet. It is down and to the left of where he sits. He will have clear access to the power switch and plug outlets and be able to look down into the top in the cabinet.

Installing a filter on the bottom if you decide to go with two 120mm fans is tricky as the feet of the case get in the way. I had to install filters on the inside of the case with the fans when I really had preferred on the outside. See picture.

I did notice some scratches in the acrylic and it appears easy to scratch.

Finally, I don’t understand why there are areas in case with no filter for dust. What good does having mesh on the sides and front, but open on the bottom and rear?

ineedasandwich 55 points 40 months ago

For a first time builder, this is an awesome case, everything strips down, plenty of room to build, to tuck away cables and what not, a few points however: - As others have pointed out the PSU bracket is a pain in the derriere, I only stuck with it because I'm a perfectionist but I honestly don't think it's a needed thing to install for PSU's under 750W - I removed the cage with the 3 3.5 inch disk trays to give me more room for cable management, you can fit 4 2.5 inch HDD's or SSD's on the right hand side panel and it's more discrete for cabling I think. - I kept my build horizontal with window panel at the top, this case is amazing, and my build is SUPER quiet, honestly it's quieter than any of the laptops I've ever owned. Got it for 62 euros.

marktwoen 8 points 40 months ago
from completed build Pioneer Red (Black Friday Build)

I like this case. looks good and has a ton of well thought out features that come with it. Wire management was good but wire related frustrations were not entirely void. The stacking option is a bit peculiar though. But overall, a good case.

After 1 year: HD Audio connectors' faulty.

Fr0st_Byte 8 points 40 months ago
from completed build Fireball ~ The Upgrade [Team Red]

The case looks fantastic, and it's easier to build in than you would think. Lots of room for fans/radiators, and I'm sure the stacking option is great if you plan to actually use that / have ceiling space for it. Bright blue power LED throws me off. Build quality is just fine.

danny6787 9 points 40 months ago
from completed build i7 Work Station

This thing is a BEAST!!! You can add so many fans, you have room for everything you need and it runs super cool