The Tower 300 Micro Tower Chassis
Best compact chassis for enthusiasts building high-performance, visually striking gaming rigs.
The Tower 300 Matcha Plum Micro Tower Chassis redefines PC building with its iconic vertical, octagonal prism design. This case offers exceptional hardware support, accommodating a 4090 GPU and a 420mm AIO radiator on the right side. It includes two pre-installed 140mm PWM fans for immediate cooling. Enhance your setup with an optional stand kit for horizontal placement or a 3.9" LCD screen kit for real-time monitoring and custom visuals. Tool-free tempered glass panels and comprehensive dust filters ensure easy maintenance and a clean build.
$4490.00
Owner Satisfaction
4.6
/ 5
Category Rank
79
/ 903
#79 in Desktop Computer Cases
Price vs Category Average
+604%
Above average
Motherboard Compatibility
Mini ITX, Micro ATX
/ Mini ITX, Micro ATX
Who it's for
- Performance enthusiasts running high-end hardware in a compact footprint
- Design-focused builders wanting a unique, sophisticated statement piece
- Flexible users needing adaptable orientation for different desk layouts
Who should skip it
- Minimalists requiring a truly space-saving small form factor build
- Novice builders intimidated by complex cable management and tight spaces
- Budget-conscious shoppers avoiding additional costs for premium display features
Performance breakdown
Thermal Capacity
Massive radiator support handles high-end cooling with ease.
Hardware Compatibility
Accommodates full-sized GPUs despite the compact micro tower footprint.
Build Accessibility
Tool-free panels make component installation and maintenance remarkably straightforward.
Aesthetic Versatility
The unique octagonal prism design creates a striking visual centerpiece.
Customization Potential
Optional LCD screen and horizontal stand kits offer significant personalization.
Dust Management
Comprehensive filtration keeps internal components clean in various environments.
Key Specs
Motherboard Compatibility
Mini ITX, Micro ATX
Max GPU Length
400mm (without power cover)
Max CPU Cooler Height
210mm
Max PSU Length
220mm
Radiator Support
Up to 420mm on the right side
Drive Bays
Three 2.5'' SSDs or three 3.5'' HDDs
Included Fans
Two 140mm PWM fans
Case Type
Mini Tower
Features
- Unique octagonal prism vertical design
- Supports large 420mm AIO radiators
- Optional horizontal case placement
- Interactive 3.9" LCD display support
- Tool-free tempered glass panel access
- Extensive fan mounting options
- Integrated dust protection filters
- Pre-installed PWM cooling fans
What customers say
Customers are overwhelmingly drawn to the distinctive design of the Matcha Plum chassis. The panoramic glass and unique vertical orientation transform it into a stunning centerpiece, moving beyond standard black boxes. Reviewers consistently praise the robust build quality, noting the solid materials and thoughtful engineering that support high end components despite the micro tower size. While assembly requires careful planning, the final aesthetic payoff and premium feel justify the effort, making this case a high value choice for enthusiasts prioritizing style.
Know before you buy
The Tower 300 is designed for Mini-ITX and Micro-ATX motherboards. Its compact footprint is optimized for these smaller form factors while still providing enough internal volume for high-end components.
Yes, the case supports GPUs up to 400mm in length, provided you remove the power cover. This allows it to accommodate even the largest flagship graphics cards on the market.
Yes, but you will need to purchase the optional horizontal stand kit separately. This allows you to reorient the chassis to better fit your desk layout or aesthetic preferences.
The LCD screen is an optional accessory that replaces the front panel section. It connects via an internal USB header and is configured through Thermaltake’s software to display system temperatures or custom animations.
The case is specifically engineered to support a 420mm AIO radiator on the right side. The combination of the open-frame design and the included 140mm PWM fans ensures efficient heat dissipation for demanding builds.
Maintenance is straightforward because the case features integrated dust filters that are easily accessible. The tempered glass panels are also tool-free, allowing you to quickly remove them to reach the filters and internal components.
Still have a question?
Ask Hayley anything about this product before you decide.
Ready to buy?
$4490