Thermaltake Core G21 Review

Just a single look at this chassis can tell why it became so popular with the gamers and PC enthusiasts – it looks amazing!

It comes with a great number of features – it has 4mm thick windows made out of tempered glass, a power supply cover that makes the cable management a lot easier, and has excellent ventilation and expandability for the high-end video gaming configurations.

It supports all the latest PC hardware (like the advanced GPUs or the liquid cooling solutions), and if building the dream rig starts with the case – and we can see why so many people choose the Thermaltake Core G21.

Let’s see all of the features that this PC case has:

Interesting features of the Thermaltake Core G21 Tempered Glass Edition Case

Just like we expected, this chassis comes with a lot of interesting features. One of the first things to notice here is surely the presence of the 4mm thick windows, which are present on the left and the right side of the case, and are made out of tempered glass. This material guarantees durability and permits the owner to admire the system from both sides. The Thermaltake Core G21 case has fully modular brackets, which are there to provide the user with an easy installation. For example, changing 2.5″ and 3.5″ hard-drives is tool-less and incredibly easy, and definitely deserves a lot of praise.

image showing Thermaltake Core G21 panels

The Thermaltake Core G21 also has excellent expandability – there’s enough space in it to build the rig of your dreams. The case supports the tower CPU coolers that have a maximum height of 160mm and has the dual-expansion VGA slot that can handle 410mm of graphics card size. Furthermore, it can also easily accommodate multiple storage devices, which can come in very handy.

The cooling capabilities of this case are just stellar – it is optimized for fast ventilation, and also supports all sorts of advanced liquid-cooling solutions, which just might be the thing that you’ve been searching for.


  • Dimensions (mm) – 476 x 208 x 471 (H x W x D)

  • Weight – 8Kg

  • Front Panel – 2 x USB 3.0, 1 x HD Audio

  • Material – SPCC steel

  • Maximum graphics card length – 410mm

  • Fan Support – Bottom: 1 x 120mm, Rear: 1 x 120mm, Top: 1 x 120mm, 1 x 140mm

  • Front: 3 x 120mm, 2 x 140mm

  • Extras – Tt LCS certified, pre-mounted PSU, mesh front-panel


  • Good design
  • Tempered glass windows
  • Modular concept
  • Great cooling capabilities


  • Easily scratchable windows

Check out this Product Video made by Thermaltakereview:


Although it is not perfect, we can safely say that the Core G21 is among the best PC cases in this price category that we have reviewed so far. There are a lot of things to like here – the chassis has some excellent cooling capabilities, thick windows made out of tempered glass (which are, unfortunately, quite prone to scratches), and it is incredibly easy to reorganize the things in its interior. It supports a number of cooling fans and has a bigger-than-average VGA size limitation, and all of this combined makes the G21 an option worth considering.


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