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Black mid-tower case with tempered glass side panel, vertical airflow design and USB-C front port

Geometric Future

Geometric Future M4 King Arthur Black PC case

SKU CH-JJTK-QHRDV

A compact 35 L mid-tower that fits E-ATX boards, 400 mm graphics cards and 360 mm radiators, built from 1.0 mm steel and 3.0 mm tempered glass with a vertical GPU mount.

  • TypeATX / Micro ATX Mid Tower
  • ColorBlack
  • Case MaterialABS / Steel / Tempered Glass
  • With Power SupplyNo
  • Motherboard CompatibilityATX / E-ATX / Micro ATX / Mini ITX
  • Side Panelwith Side Window

Options Black

  • Black
  • White

Struck-through versions exist but are not stocked here.

  • Vertical airflow tunnel draws cool air through mesh footstand on three sides
  • 35 L interior fits E-ATX boards up to 12" x 11" and 400 mm graphics cards
  • 0 mm steel chassis with 1.2 mm L-shaped tempered glass side panel
  • 31 mm cable-routing space behind motherboard plus vertical GPU mount option
  • Front I/O includes USB 3.1 Gen 1, USB 3.2 Type-C and HD audio ports

Compact ATX chassis for flexible builds

The Geometric Future M4 King Arthur Black is a 35 L mid-tower case that accepts E-ATX boards up to 12 by 11 inches as well as ATX, micro-ATX and mini-ITX. It suits builders who want a relatively small footprint with room for long graphics cards and multiple radiators.

Check motherboard width

The case fits E-ATX boards measuring 11 by 12 inches, so verify your board does not exceed those dimensions. Top mounts take a 240 mm radiator or two 120 or 140 mm fans, while the bottom supports a 360 mm radiator or three 120 mm fans; ensure your cooling hardware matches these limits.

Sustained airflow through vertical tunnel design

A mesh footstand on three sides feeds air upward through the chassis, allowing three 120 mm or two 140 mm intake fans at the bottom to work with top and rear exhaust. This vertical tunnel keeps component temperatures stable during long sessions rather than relying on short bursts of high fan speed.

Highlights

  • Vertical airflow tunnel draws cool air through mesh footstand on three sides
  • 35 L interior fits E-ATX boards up to 12" x 11" and 400 mm graphics cards
  • 0 mm steel chassis with 1.2 mm L-shaped tempered glass side panel
  • 31 mm cable-routing space behind motherboard plus vertical GPU mount option
  • Front I/O includes USB 3.1 Gen 1, USB 3.2 Type-C and HD audio ports

Specifications

BrandFractal Design
Part NumberCC-9011268-WW
TypeATX / Micro ATX Mid Tower
ColorBlack
Case MaterialABS / Steel / Tempered Glass
With Power SupplyNo
Motherboard CompatibilityATX / E-ATX / Micro ATX / Mini ITX
Side Panelwith Side Window
Sports LeagueAware Gaming
External 5.25" Drive BaysNo
Internal 3.5" Drive Bays2
Internal 2.5" Drive Bays4
Expansion Slots1
Front PortsUSB 3.1 Gen 1 / USB 3.1 Type-C / Audio
Fan OptionsBottom - 2 x 140mm / Bottom - 3 x 120mm / Rear - 1 x 120mm / Top - 2 x 120mm / Top - 2 x 140mm
Radiator OptionsBottom - Up to 360mm / Rear - Up to 120mm / Top - Up to 240mm
40mm Fans1
120mm Fans1
140mm Fans4
180mm Fans4
200mm Fans1
220mm Fans1
360mm Fans2
Max GPU Length400 mm
Max CPU Cooler Height164 mm
Max PSU Length220 mm
Dimensions14.33in W x 12.83in H x 9.06in D
Features[POSSIBLE_SPECIAL_FEATURES] Vertical GPU Mount, Extra Space for Cables, Support for Various Radiators and Fan Configurations
Package ContentKing Arthur Black

Questions about this item

What comes in the box and what must I buy separately?

The box contains the M4 King Arthur Black chassis with four 140 mm fans, one 120 mm fan, one 40 mm fan, tempered-glass side panel and mounting hardware. Power supply, motherboard, CPU cooler, graphics card, storage drives and any additional fans or radiators are not included.

Which motherboard form factors fit and how do I choose?

The case accepts E-ATX up to 12 x 11 in, standard ATX, micro-ATX and Mini-ITX boards. Choose E-ATX only if your board matches the 12 x 11 in limit; otherwise ATX or smaller gives more clearance for cables and radiators.

What does the 360 mm bottom radiator support mean once the PC is built?

You can install a 360 mm all-in-one cooler at the bottom as intake, pushing cool air up through the vertical air tunnel. This works with the included 140 mm fans and leaves the top free for a 240 mm radiator or two 120/140 mm fans.

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