Thermaltake
Thermaltake Tower 300 Black Micro-ATX Case; 2x140mm CT Fan Included; Support Up to 420mm Radiator; Optional Chassis Stand Kit Allows Horizontal Display; CA-1Y4-00S1WN-00; 3 Year Warranty
Bottom line: The Thermaltake Tower 300 Black Micro-ATX Case; 2x140mm CT Fan Included; ($149.99 on Amazon as of 2026-10-06): Octagonal vertical chassis fits a 4090 GPU in a Micro-ATX footprint; main trade-off: chassis Stand Kit for horizontal display is sold separately.
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*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
Pros & Cons
Pros
- ✓ Octagonal vertical chassis fits a 4090 GPU in a Micro-ATX footprint
- ✓ Two 140mm CT fans preinstalled, no day-one fan purchase
- ✓ Mounts up to a 420mm AIO radiator, rare at this case size
- ✓ Eight 120/140mm fan spots: top, rear, PSU cover, right bracket
Cons
- ✗ Chassis Stand Kit for horizontal display is sold separately
- ✗ Micro-ATX ceiling rules out full ATX motherboards
- ✗ PSU length capped at 220mm standard-size units
- ✗ Vertical octagonal shape needs more desk depth than a flat tower
Manufacturer description
As a new edition of The Tower Series, The Tower 300 inherits the classic vertical case design but comes in an octagonal prism shape. It has amazing hardware compatibility, accommodating a 4090 GPU, a standard-sized power supply up to 220mm, and a 420mm AIO radiator. What's more, it can accommodate up to eight 120mm/140mm fans on the top, back, PSU cover and right side fan bracket. If you want to make The Tower 300 more visually appealing, you can purchase the separately sold 3.9" LCD Screen Kit and Chassis Stand Kit to upgrade the build; the former to display real-time component information…
SpecPicks Verdict
SpecPicks scored Thermaltake Tower 300 Black Micro-ATX Case; 2x140mm CT Fan Included… using a rating × review-volume × price-fit model applied to published specs and reviews across the pc cases category. Thermaltake's pc cases lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for pc cases of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Key Features
- Octagonal tower chassis supports up to M-ATX motherboad
- 2 x 140mm CT Fan included
- Supports up to 120/140mm fan x 3 or 420mm radiator
- Horizontal display enabled by optional Chassis Stand Kit (Need to purchase seprately)
- Addional LCD Screen Kit avaialble for purchase
Full Specifications
| Brand | Thermaltake |
|---|---|
| Color | Black |
| Fan Size | 140 Millimeters |
| Material | Alloy Steel |
| Case Type | Midi Tower |
| Model Name | Tower 300 Black |
| Unit Count | 1.0 Count |
| Model Number | CA1Y400S1WN00 |
| Cooling Method | Air, Water |
| Number of Fans | 8 |
| Mfr Part Number | CA-1Y4-00S1WN-00 |
| Total Usb Ports | 3 |
| Antenna Location | Gaming |
| Compatible Devices | Devices with Mini ITX and Micro ATX motherboard form factors, and components that fit the specified fan, radiator, and GPU size limitations |
| Enclosure Material | Alloy Steel |
| Total USB 2.0 Ports | 3 |
| Total USB 3.0 Ports | 2 |
| Warranty Description | 3 Year Manufacturer |
| Hard Disk Form Factor | 3.5 Inches |
| Supported Motherboard | Micro ATX |
Ready to buy?
Thermaltake Tower 300 Black Micro-ATX Case; 2x140mm CT Fan Included; Support Up to 420mm Radiator; Optional Chassis Stand Kit Allows Horizontal Display; CA-1Y4-00S1WN-00; 3 Year Warranty is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
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