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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.

  • Max graphics card length400 mm
  • Housing materialABS / Steel / Tempered Glass
  • Supported motherboard sizesATX / E-ATX / Micro ATX / Mini ITX
  • Side panel typeWith Side Window
  • League or teamAware Gaming
  • 3.5-inch internal bays2

Color Black

  • 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.

How it compares

Measured against everything we stock in Tower & Desktop PC Cases, at today’s prices. Recalculated every night.

Price $62.99
Cheaper than about 78% of the 1,468 comparable items (median $100.99).
Max graphics card length 400 mm
Typical for this category: the median of 894 items is 400 mm.

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameFractal Design
Part numberCC-9011268-WW
Product typeATX / Micro ATX Mid Tower
Product colorBlack
Storage
5.25-inch external baysNo
3.5-inch internal bays2
2.5-inch internal bays4
Ports & slots
Expansion card slots1
Front panel portsUSB 3.1 Gen 1 / USB 3.1 Type-C / Audio
Power
Power supply includedNo
Size & build
Max graphics card length400 mm
Housing materialABS / Steel / Tempered Glass
Side panel typeWith Side Window
Fan mounting optionsBottom - 2 × 140 mm / Bottom - 3 × 120 mm / Rear - 1 × 120 mm / Top - 2 × 120 mm / Top - 2 × 140 mm
Product dimensions14.33 in W × 12.83 in H × 9.06 in D
Compatibility
Supported motherboard sizesATX / E-ATX / Micro ATX / Mini ITX
Radiator supportBottom - Up to 360 mm / Rear - Up to 120 mm / Top - Up to 240 mm
CPU cooler height limit164 mm
PSU length limit220 mm
In the box
Included itemsKing Arthur Black
More details
League or teamAware Gaming
40mm fans1
120mm fan count1
140mm fans4
180mm fans4
200mm fans1
220mm fans1
360mm fans2

Other versions of this model

1 more in the same range

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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