Name: Fractal Design Define One Light Solid
Brand: FRACTAL DESIGN
SKU: CBdo04
Price: 3959 CZK
Availability: InStock
Rating: 0 (0 reviews)

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Fractal Design Define One Light Solid - PC Case - Main image

PC Case - ATX, mATX (Micro ATX), mITX (Mini ITX) and eATX (Extended ATX), 2× 2,5" slot(s), 2× 2.5"/3.5" slot(s), USB 3.2 Gen 1, USB-C, 3.5mm jack (mic/headphones) and USB 3.2 Gen 2x2, 3×140mm, max. heat sink height: 171mm, max. graphics card length: 368mm, without power supply, side panel made of steel

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Warranty 24 months Code: CBdo04 Producer's Website:

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Fractal Design Define One Light Solid

The Fractal Design Define One Light Solid PC case features a steel Midi Tower chassis designed for building gaming and high-performance computer systems. Weighing 11.3kg and measuring 500×235×482mm, it offers an internal volume of 56.63L. The chassis combines a minimalist Nordic look with quiet operation thanks to a closed industrial steel front panel and integrated sound-dampening bitumen panels on both side panels.

Key features of the Fractal Design Define One Light Solid PC case

Steel chassis features sound-insulated side panels with bitumen dampening for quiet operation
Three pre-installed Momentum 14 fans ensure strong airflow
Tool-less panel mounting system facilitates easy access to hardware
Front panel includes a fast USB-C port with 20Gbps transfer speed
Integrated graphics card bracket prevents PCB bending
Space behind the motherboard offers a depth of 37mm for cable management

Acoustic insulation and noise dampening

The closed front of the case effectively prevents fan noise from spreading into the surrounding space. Both left and right side panels are made of industrial steel and feature sound-dampening bitumen layers to absorb vibrations and mechanical shocks. This design choice significantly reduces the noise level emitted by internal components under high system load.

Airflow and cooling

Cold air enters the chassis through patterned aluminium side vents. The manufacturer has fitted the front slots with three powerful Momentum 14 fans with liquid crystal blades for stable static pressure. In total, the chassis accommodates up to 6 fans, helping to maintain an optimal temperature for all installed components. The top of the case allows for the installation of water cooling radiators in sizes of 120, 240 or 280mm. The front slots can hold a radiator of up to 360mm, while a 120mm radiator can be placed at the rear. The maximum height of a standard CPU cooler is 171mm, providing wide compatibility with processor coolers.

Support for modern motherboards

The spacious interior offers plenty of room to install motherboards ranging from Mini ITX, Micro ATX and ATX to Extended ATX formats. The design supports motherboards with reverse connectors like Reverse Micro ATX and Reverse ATX. This clever solution makes it easy to plug in power cables from the back, contributing to a clean interior layout.

Space for graphics cards

The interior safely accommodates graphics cards up to 368mm in length. Secure mounting of heavy cards is ensured by an integrated support bracket with an air duct to direct cooling airflow towards the GPU core. The case offers seven expansion slots for installing additional add-in cards, expanding system connectivity and reinforcing the internal structure.

Easy tool-free access

Removing the top, front and both side panels is completely tool-free thanks to the quick-release system. Behind the motherboard, there is a 37mm deep space with cable straps and routing guides for clean cable management. For storage drives, 2 dedicated 2.5" drive bays and 2 combo 3.5"/2.5" bays are available.