Thermaltake Core V21 SPCC Micro ATX, Mini ITX Cube Gaming Computer Case Chassis, Small Form Factor Builds, 200mm Front Fan Pre-installed, CA-1D5-00S1WN-00 Black

Wish I had bought this case years ago. So much more room than in the CoolMaster ITX case I had before. I love how my ATX power supply fits below the motherboard and with its fan facing down to blow hot air out. Very nice for keeping cables out of the way with all the cable storage space on the bottom. Very easy to put your computer together in this case. I have a GeForce RTX 30350 and it fit in so easily; with a lot of space to spare. Plexiglass on top to allow you to see in is very nice. I don't need or want glass and am more than content with the plexiglass. The 200 mm fan in the front (pulls air out) is super quiet. Don't believe the reviews saying otherwise. My i5-12600 with a SLIGHTLY upgraded fan/heatsink is running at 45c. This is a great case worthy of a buy, so you can see for yourself. I have built many computers in my time and I have nothing negative to say about this case. I do not have a water pump or radiator and cannot speak to that. If you have a very tall fan/heatsink, I think you'll be more than fine as there is SO much room (6" easily) above mine that I'm sure you could fit anything in here. This is a well-thought-out case.

I bought this Thermaltake Core V21 about 8 years ago for my gaming setup, and it’s hands-down one of the best compact Micro ATX cases I’ve ever owned. Its small, cube-shaped design tucks neatly into the corner of my room, saving space without sacrificing performance. Despite its size, it fits my full-size GPU and CPU cooler with ease, and the 200mm front fan keeps everything cool during intense gaming sessions (think long hours of FPS and RPG games). The modular design is a dream—swappable panels let me tweak airflow for my setup, and it’s sturdy enough to handle a few bumps over the years.The only minor downside is that cable management can be tricky due to the compact interior, requiring some patience to keep things tidy. Also, it comes with just one fan, so I added an extra 120mm fan for better exhaust. For a compact case, though, it’s a beast, supporting liquid cooling if I ever upgrade. It’s perfect for gamers who want a powerful, space-saving build that doesn’t dominate the room. Highly recommend for small apartments or minimalist setups!

I really like this case. First, it fits my need. I wanted something that would fit into an Ikea "box of open cubes" type shelf unit. The opening on each cube is 13" x 13" (H x W). The Core V1 is under 10.9" x 10.2" H x W. Fits perfectly with enough open space for ventilation. Shoved inside the cube, everything is staying at a nice 25-27 C at idle.The quality is of good quality. The metal is light but more than sturdy enough to sit on a shelf. The parts all fit well. The front panel connectors and switches all functioned as expected. The fit and finish are good, and it is an attractive case.Top, bottom and both sides come off with thumb screws. The top and sides are all interchangeable. You can put the windowed panel on top or either side. (Thermaltake sells replacement window panels for this case. I wish they sold replacement vented panels. I don't need the window.)The easy access made assembly a breeze. There is enough internal space that my 160mm non-modular PSU worked great. The excess cables tucked neatly on the side of the PSU, and I could route and tie the cables together to permit good airflow through the case.To improve air flow, I put the windowed panel on one side and installed the two ventilated panels on the top and the other side. I pushed the windowed side of the case against the cubby hole wall to encourage airflow out the ventilated top and side.I did not install the optional (not included) 2 x 80 mm fans in the rear of the case. Between the 200 mm front fan (included) and the fact that my older model PSU draws air through the case and the natural ventilation built into the case itself. I have no heat issues.Using the stock 200mm fan, the stock CPU fan and my older PSU with 2 x 80 mm fans, it is not a dead silent case. It still sounds like a computer in operation.