Fractal Design Define One Dark Solid Mid Tower Case, Black

The Define One Dark Solid stands apart from typical mid-tower cases by making silence a priority without compromising on hardware flexibility. Instead of forcing a choice between airflow and noise, this chassis combines a solid, sound-dampened front panel with a dark tempered glass side panel to keep your build quiet while still supporting high-end components. It's a case built for builders who want a clean, quiet system that looks as good as it performs.

Highlights

• Supports E-ATX (up to 272mm), ATX, Micro ATX, and Mini ITX motherboards
• Dark tempered glass side panel showcases your components with a sleek tint
• Solid front panel with sound-dampening material reduces noise
• Two Dynamic X2 fans included: 1x GP-14 front, 1x GP-12 rear
• Front I/O: USB 3.1 Gen 2 Type-C, 2x USB 3.0, 2x USB 2.0, audio jacks
• Dust filters on front, top, and bottom for easy maintenance
• 23 mm cable management space behind motherboard tray

In daily use

The Define One Dark Solid is built for builders who want a clean, quiet system. The solid front panel and dampening materials absorb noise from fans and drives, while the included Dynamic X2 fans provide balanced airflow. The dark tempered glass side panel offers a premium look without excessive glare, and the front I/O includes a modern USB Type-C port for fast connectivity. With support for radiators up to 360 mm in the front and 280 mm in the top, you can configure a powerful cooling loop even in a silence-focused case.

Full specifications

• Case Type: Mid Tower
• Motherboard Support: E-ATX (max 272mm), ATX, Micro ATX, Mini ITX
• Side Panel: Dark Tempered Glass
• Front Panel: Solid (Sound Dampened)
• Material: Steel, Tempered Glass
• 3.5"/2.5" Drive Bays: 2
• 2.5" Dedicated Drive Bays: 2
• Expansion Slots: 7
• Front I/O Ports: 1x USB 3.1 Gen 2 Type-C, 2x USB 3.0, 2x USB 2.0, Audio I/O
• Included Fans: 2 (1x Dynamic X2 GP-14 front, 1x Dynamic X2 GP-12 rear)
• Max CPU Cooler Height: 169 mm
• Max GPU Length: 360 mm (with front fan)
• Max PSU Length: 200 mm (with HDD cage)
• Front Radiator Support: Up to 360 mm / 280 mm
• Top Radiator Support: Up to 240 mm / 280 mm (max 35mm RAM height)
• Dust Filters: Front, Top, Bottom
• Cable Management Space: 23 mm
• Color: Black

Final note

With its focus on silence and clean aesthetics, the Define One Dark Solid is an excellent foundation for a quiet, high-performance PC build.