As a new member of the Tower series, The Tower 300 shares the same silhouette with its predecessors, offering full display to the system components. The most obvious appearance between its families is the octagon design. You can fit 4090 GPU and a 420mm radiator in The Tower 300, keeping the motion high and the temperature low. Besides two preinstalled top fans, you can also install two 120/140mm behind the motherboard or one 120/140mm fan on top of the power cover or three 120/140mm fans at the right side fan bracket. It provides excellent hardware expandability to accommodates latest PC hardware without compensating the building experience.
Q: How many fans are included in the case?
A: This PC case comes with two fans pre-installed.
Q: What is the maximum height of a CPU cooler that can be installed?
A: The maximum CPU cooler height that can be installed is 200 millimeters.
Q: What are the case's dimensions?
A: The product dimensions are 11.5 inches deep, 14 inches wide, and 22.5 inches high.
Q: Does the case have any USB Type-C ports?
A: This PC case has one USB Type-C charging port.
Q: Can you install a 420mm radiator in the case?
A: You can fit a 420mm radiator in The Tower 300.
Q: What is the maximum length of a GPU that can be installed?
A: The maximum length of a GPU that can be installed is 400 millimeters.
Q: What is the maximum width of gpu that can be installed?
A: Hello, you can currently fit any GPU into this case. Best regards, Thermaltake Support
Q: Does this case come with a gpu riser cable or do we have to buy it ourself.
A: Hello, This case does not come with a riser cable, but also does not have an option that would require one. There is no way to mount the GPU any other way other than how it is by default. Best Regards, Thermaltake Support

As a new member of the Tower series, The Tower 300 shares the same silhouette with its predecessors, offering full display to the system components. The most obvious appearance between its families is the octagon design. You can fit 4090 GPU and a 420mm radiator in The Tower 300, keeping the motion high and the temperature low. Besides two preinstalled top fans, you can also install two 120/140mm behind the motherboard or one 120/140mm fan on top of the power cover or three 120/140mm fans at the right side fan bracket. It provides excellent hardware expandability to accommodates latest PC hardware without compensating the building experience.

The Tower 600 is an ATX case with a classic vertical case design and comes in an octagonal prism shape that is compatible with the latest hidden-connector motherboards. It supports up to a 420mm AIO radiator on the right side and a 360mm AIO radiator on the left side, and it can accommodate up to thirteen 120mm fans or nine 140mm fans. With a separately sold Chassis Stand Kit, users can enjoy a unique view with a special horizontal placement.

The Tower 600 is an ATX case with a classic vertical case design and comes in an octagonal prism shape that is compatible with the latest hidden-connector motherboards. It supports up to a 420mm AIO radiator on the right side and a 360mm AIO radiator on the left side, and it can accommodate up to thirteen 120mm fans or nine 140mm fans. With a separately sold Chassis Stand Kit, users can enjoy a unique view with a special horizontal placement.

The H3 Flow is a space-efficient micro-ATX PC case delivering exceptional airflow and versatile component compatibility. Designed for optimal cooling, the mesh panels and ventilated PSU shroud keep high-performance components running smoothly.
| Pros for Thermaltake - The Tower 300 Micro ATX PC Case - Black | |||
|---|---|---|---|
| Appearance | There were no pros for this product— | There were no pros for this product— | Airflow, Size, Cable Management |
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This is for my husbands gaming setup. It fits on a IKEA square shelf on the top, it’s too small to fit inside but it looks great on display sitting on the top. Our old ones were also on the top but they hung over and didn’t look as aesthetically pleasing!
This review is from Thermaltake - The Tower 300 Micro ATX PC Case - Bumblebee Yellow
Posted by Jennifer
Such a good looking case but if you have a beefy build the heat will not be nice to your pc components. I ran a 4090 with a Asus Ryujin 3 240mm and the heat was too much for the case to exhaust. If your build is less beefy then I'd definitely recommend this case.
Posted by Meagie
Building in this case wasn't easy (then again it's rarely easy for myself since I've only built PCs twice), but it's well worth it. Very attractive looking case, and I love how easily you can take panels off without the need for screws. It does require some planning on which cables will be fed into the interior into the graphics card and\or motherboard since the I\O comes out of the top of the case instead of the bottom, so be aware.
This review is from Thermaltake - The Tower 300 Micro ATX PC Case - Bumblebee Yellow
Posted by Beep