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The ROG GR20 Edition 20 is an open-frame mid-tower built for ROG's 20th anniversary, made primarily from a 4mm aluminium-alloy frame with steel and plastic elements. It measures 285 x 513 x 470mm and weighs 9.3kg empty.
The ROG GR20 Edition 20 is an open-frame mid-tower built for ROG's 20th anniversary, made primarily from a 4mm aluminium-alloy frame with steel and plastic elements. It measures 285 x 513 x 470mm and weighs 9.3kg empty.


The frame supports three placement modes, so the same build can stand as a tower, sit at an angle or lie flat as a desk piece. Ambient ARGB lighting runs along all four sides.

The frame supports three placement modes, so the same build can stand as a tower, sit at an angle or lie flat as a desk piece. Ambient ARGB lighting runs along all four sides.

A crossflow fan is included, with a 4-pin connector, PWM control and speeds up to 2500rpm. It spreads airflow broadly across the components rather than through a single point, including over SSDs.
A crossflow fan is included, with a 4-pin connector, PWM control and speeds up to 2500rpm. It spreads airflow broadly across the components rather than through a single point, including over SSDs.


The front panel carries two USB 20Gbps Type-C ports supporting 60W fast charging on compatible devices, two USB 5Gbps Type-A ports, and a headphone and microphone combo jack.

The front panel carries two USB 20Gbps Type-C ports supporting 60W fast charging on compatible devices, two USB 5Gbps Type-A ports, and a headphone and microphone combo jack.

The chassis takes EATX, ATX, Micro-ATX and Mini-ITX motherboards, graphics cards up to 368mm long mounted vertically or horizontally, a 360mm radiator or three 120mm fans, an ATX power supply up to 190mm, and leaves 36mm for cable management.
The chassis takes EATX, ATX, Micro-ATX and Mini-ITX motherboards, graphics cards up to 368mm long mounted vertically or horizontally, a 360mm radiator or three 120mm fans, an ATX power supply up to 190mm, and leaves 36mm for cable management.


The open-frame design is modular, so panels and brackets come away for access during a build rather than working through a side window.

The open-frame design is modular, so panels and brackets come away for access during a build rather than working through a side window.
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