The ASUS ROG GR20 Edition 20 is a premium open frame mid tower gaming case crafted primarily from aluminium, combining a distinctive modular design with flexible placement options and high performance cooling support. Designed for showcase builds, the GR20 supports EATX, ATX, Micro-ATX and Mini-ITX motherboards, graphics cards up to 368mm long, ATX power supplies up to 190mm and radiators up to 360mm, providing compatibility for a wide range of high-end components. Its open-frame construction promotes unrestricted airflow and direct heat dissipation, while the included crossflow fan provides broad airflow coverage across key components and operates at up to 2500 RPM with PWM control. The case can be positioned vertically, horizontally or at an angle, allowing the layout to be adapted to different spaces and setups, while a reinforced 4mm thick aluminium-alloy frame provides structural rigidity. A dedicated graphics card bracket supports select NVIDIA GeForce RTX 50 Series cards measuring 354-368mm, helping reduce sag and movement, while 36mm of cable management space behind the motherboard keeps wiring organised. Ambient ARGB lighting runs along all four sides of the frame, complemented by refined ROG design details and a modular I/O panel featuring two USB Type-C ports supporting up to 20Gbps and 60W fast charging, two USB 5Gbps Type-A ports and audio connections. Measuring 285 x 513 x 470mm and weighing 9.3kg, the ROG GR20 Edition 20 provides a versatile foundation for performance-focused and visually striking gaming systems.
Features
ROG GR20 Edition 20
Innovate. Perform. Dominate.
For two decades, ROG has stood at the forefront of gaming innovation, pushing boundaries and defining excellence. To commemorate this monumental 20th anniversary, ROG proudly unveils a special selection of limited-edition ROG components and gear featuring an alternative colourway and leading innovations. More than an aesthetic, this colourway reflects core values that are a testament to an enduring legacy.
The ROG GR20 is a premium open-frame, modular PC case, primarily crafted from aluminium and perfectly balanced for aesthetics, performance, and customisation. It delivers a refined, high-end look and ensures solid structural integrity and excellent thermal performance. Vertical, angled, and horizontal placement options give enthusiasts the flexibility to adapt a setup based on space, usage, and personal style. On top of that, the GR20 includes an exclusive crossflow fan designed to provide wide airflow coverage, boosting cooling versatility to help keep SSDs running cooler.
Open Aluminium Frame Design
- The Crossflow fan delivers wide airflow coverage
- Reinforced graphics card bracket for stability
- Three Placement Options for Different Scenarios
- Supports EATX Motherboards
- Supports Radiators up to 360mm Long
- Supports Graphics Cards up to 368mm Long
- Supports Power Supplies up to 190mm Long
Three Setup Options
The open-frame offers unrestricted airflow and direct, high-efficiency heat dissipation. But what truly sets the GR20 apart is its incredible versatility. With vertical, angled, and horizontal placement options, it adapts to virtually any setup – whether it is a desk-mounted showcase, a space-saving under-desk placement, or a unique angled display.
Vertical Placement
Maximise footprint efficiency while showcasing the system with a clean, upright presence.
Angled Placement
Create a dynamic display that enhances airflow exposure and highlights the build from multiple perspectives.
Horizontal Placement
Build a stable setup designed for compact spaces or limited vertical clearance.
Integrated Crossflow Fan
An integrated crossflow fan delivers broad, consistent airflow across key components, enhancing overall cooling efficiency while improving thermal performance for SSDs and surrounding hardware.
- 4-Pin Connector
- PWM Control
- Up to 2500rpm
Compatibility
Motherboard Support
The GR20 Edition 20 accommodates 12 x 10.9-inch EATX motherboards, delivering ample space for advanced system builds.
Graphics Card Support
The GR20 Edition 20 supports graphics cards up to 368mm long, with vertical and horizontal installation support.
Power Supply Support
The GR20 Edition 20 supports vertical power supply installation, accommodating a maximum length of 190mm.
Radiator / Fan - Cooling Support
The GR20 Edition 20 supports up to three 120mm fans or a 360mm radiator to optimise both cooling and overall thermal efficiency.
Reinforced 4mm-Thick Aluminum-Alloy Frame
Crafted primarily from an aluminium alloy, this frame delivers exceptional rigidity and long-term durability while enhancing structural integrity and elevating the chassis with a refined, premium finish.
Superior Stability Under Heavy Loads
This bracket exclusively supports NVIDIA® GeForce RTX™ 50 Series graphics cards that are 354mm to 368mm long. It securely mounts the card with screws, reducing sagging and movement.
Organised Cabling
A 36mm-wide compartment behind the motherboard provides ample space to neatly organise cables, despite the relatively compact dimensions of the chassis.
Modular IO Panel
The ROG GR20 includes two USB 20Gbps Type-C® ports, with support for 60-watt fast charging where compatible. The modular I/O panel offers two placement options for flexibility, enabling users to optimise accessibility while maintaining a clean layout and consistent experience across different setups.
# Unified I/O Header
A thoughtful header design makes connecting Front Input/Output (FIO) components to the motherboard easy.
Refined Design Details
Every detail is carefully designed, from distinctive ROG elements to precision metal structures and ambient lighting, combining optimised airflow with a robust build to achieve a balance of refined aesthetics and performance-focused engineering.
Wing Plate
Metal Rog Logo
Ambient Lighting
Backed by a 3 year ASUS warranty.
