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Purple open-frame ATX mid-tower with tempered glass side panel and aluminium-magnesium structure

Corn Electronics

Corn Electronics Jonsbo MOD3 Open Frame ATX Mid Tower Purple PC Case

SKU CH-QBWX-3KQDZ

Open-frame ATX mid-tower in purple aluminium-magnesium alloy and tempered glass, supporting E-ATX boards, 400 mm GPUs, 360 mm top radiators and 49 mm rear cable space

  • TypeATX Mid Tower
  • ColorPurple
  • With Power SupplyNo
  • Motherboard CompatibilityMicro ATX / ATX / E-ATX
  • Dust FiltersYes
  • Internal 3.5" Drive Bays1

Options Red

  • Open frame design showcases hardware with unrestricted airflow
  • 49 mm rear cable routing space keeps builds tidy
  • 5 mm plus 2.0 mm aluminium-magnesium alloy frame gives rigid structure
  • Top radiator support up to 360 mm enables high-capacity liquid cooling
  • 400 mm GPU clearance fits full-length graphics cards

Purpose and audience

The Jonsbo MOD3 is an open-frame ATX mid-tower finished in purple. It targets builders who want unrestricted airflow and full visibility of high-end components without enclosure panels restricting radiator or graphics-card length.

Cooling and expansion limits

The chassis accepts front mounts for three 120 mm fans and top mounts for either two or three 120 mm fans. A top radiator up to 360 mm is supported, while the CPU cooler height limit is 170 mm and the graphics-card length limit is 400 mm.

Build quality and daily implications

The structure uses 2.5 mm and 2.0 mm aluminium-magnesium alloy with a 4.0 mm tempered-glass side panel. A 49 mm cable-management channel behind the motherboard tray keeps routing tidy, and the front panel includes 5 V ARGB mecha lighting. Dust filters are fitted, and the case provides one 3.5-inch bay plus two 2.5-inch bays with seven expansion slots.

Highlights

  • Open frame design showcases hardware with unrestricted airflow
  • 49 mm rear cable routing space keeps builds tidy
  • 5 mm plus 2.0 mm aluminium-magnesium alloy frame gives rigid structure
  • Top radiator support up to 360 mm enables high-capacity liquid cooling
  • 400 mm GPU clearance fits full-length graphics cards

Specifications

BrandJonsbo
SeriesMOD3
TypeATX Mid Tower
ColorPurple
With Power SupplyNo
Motherboard CompatibilityMicro ATX / ATX / E-ATX
Dust FiltersYes
Internal 3.5" Drive Bays1
Internal 2.5" Drive Bays2
Expansion Slots7
Fan OptionsFront - 3 x 120mm / Top - 2 x 120mm / Top - 3 x 120mm
Radiator OptionsTop - Up to 360mm
Max GPU Length400 mm
Max CPU Cooler Height170 mm
Max PSU Length195 mm

Other versions of this model

3 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Which version of the Jonsbo MOD3 open frame case should I choose if I need E-ATX motherboard support?

The single purple MOD3 model listed supports Micro ATX, ATX and E-ATX boards, so no separate version is required.

What does the 400 mm maximum GPU length mean once the case is built?

It allows graphics cards up to 400 mm long to fit without hitting the front panel or radiator mounts.

What radiator size does the top mounting area cap at in practice?

The top supports radiators up to 360 mm, limiting liquid-cooling loops to that length.

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