
MSI MPG Gungnir 300R Airflow Mid-Tower Case Black 4 ARGB Fans
Device Type: Mid-Tower Airflow Gaming PC Case Motherboard Support: E-ATX, ATX, Micro-ATX, Mini-ITX Cooling & GPU: 4x ARGB Fans, 360mm Radiator Support, 360mm GPU Clearance Aesthetics: Tempered Glass Side Panel, Perforated Front Panel Key Specs: MSI MPG Gungnir 300R, Black, 4x ARGB Fans, E-ATX Usage: High-Performance Gaming PC, Workstation, and Enthusiast Builds
Short Description
The MSI MPG Gungnir 300R Airflow is a mid-tower gaming PC case designed for enthusiasts who prioritize high airflow and a premium aesthetic . Featuring a perforated front panel for optimal ventilation, 4 pre-installed 120mm ARGB fans, and support for E-ATX motherboards, it offers excellent cooling and a showcase-ready design for high-performance builds .
Key Sections
High-Airflow Design with 4 Pre-Installed ARGB Fans
The Gungnir 300R features a high-airflow perforated front panel that allows for maximum intake, ensuring your components stay cool under load . It comes with 4 × 120mm ARGB fans pre-installed, providing excellent out-of-the-box airflow and customizable lighting through MSI Mystic Light. This design is perfect for systems with high-TDP components.
Spacious Interior with E-ATX Support
The case is designed to accommodate high-end hardware. It supports E-ATX, ATX, Micro-ATX, and Mini-ITX motherboards . The interior offers ample space with a GPU clearance of up to 360–380mm, a CPU cooler clearance of up to 175mm, and support for radiators up to 360mm, making it ideal for large graphics cards and powerful cooling solutions .
Premium Tempered Glass Aesthetics
The Gungnir 300R features a tempered glass side panel that provides a clean, unobstructed view of your components and lighting . The front I/O panel includes 2× USB 3.2 Type-A ports, 1× USB-C port, and audio/mic ports for easy access. The well-thought-out cable management layout ensures a clean and organized build .
Core Features
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High-airflow perforated front panel for optimal cooling performance .
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4 × 120mm ARGB fans pre-installed for out-of-the-box airflow .
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Supports E-ATX, ATX, Micro-ATX, and Mini-ITX motherboards .
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GPU clearance up to 360–380mm and CPU cooler clearance up to 175mm .
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Supports up to 360mm radiators for liquid cooling .
Performance & Utility Features
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The high-airflow front panel ensures maximum cooling efficiency .
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The included ARGB fans provide customizable lighting and effective airflow.
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2× USB 3.2 Type-A and 1× USB-C front I/O for modern connectivity .
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Excellent cable management design ensures a clean build .
Design, Build & Sustainability
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A tempered glass side panel showcases your build .
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The perforated front panel delivers a unique aesthetic and cooling performance .
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The robust steel construction ensures durability.
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Included GPU stand provides extra support for heavy graphics cards .
Technical Specifications Summary
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Model / Part Number: MSI MPG Gungnir 300R Airflow (306-7G21R21-W57)
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Form Factor: Mid-Tower
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Motherboard Support: E-ATX, ATX, Micro-ATX, Mini-ITX
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Fans Included: 4 × 120mm ARGB Fans
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Radiator Support: Up to 360mm
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GPU Clearance: 360–380mm
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CPU Cooler Clearance: Up to 175mm
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Front I/O: 2× USB 3.2 Type-A, 1× USB-C, Audio/Mic
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Side Panel: Tempered Glass
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Color: Black








