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Full-tower E-ATX case with dual tempered glass panels and League of Legends Janna artwork

Corn Electronics

Corn Electronics GR701 E-ATX PC case, 420 mm radiator, 4×140 mm fans, Janna edition

SKU CH-MQ1R-3YQNA

Full-tower E-ATX case with dual 420 mm radiator mounts and four pre-installed 140 mm PWM fans

  • Product typeATX Full Tower

Model Janna

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  • Supports E-ATX motherboards up to 12 by 10.9 inches
  • Fits 420 mm radiators in front and top positions
  • Four 140 mm PWM fans pre-installed for strong airflow
  • Holds graphics cards up to 460 mm long with metal bracket
  • Dual tempered glass panels showcase the build

E-ATX chassis with dual 420 mm radiator support

This full-tower case fits E-ATX boards up to 12 by 10.9 inches plus ATX, Micro-ATX and Mini-ITX. It ships with four 140 mm PWM fans already installed and offers nine expansion slots plus three vertical positions. Tempered glass covers both side panels for a clear view of the interior.

Pre-installed fans and removable filters simplify

Three front fans and one rear fan are fitted at the factory so airflow works immediately. Dust filters on front, top and bottom pull out for cleaning without tools. The 34 mm cable-management channel behind the motherboard tray keeps routing tidy and reduces the chance of pinched wires.

Check motherboard width GPU length

The tray accepts boards up to 10.9 inches wide; wider E-ATX models will not fit. Graphics cards must be 460 mm or shorter and CPU coolers 190 mm or lower. Power supplies longer than 240 mm cannot be installed. Buyers needing longer GPUs or deeper PSUs should look elsewhere.

How it compares

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

Price $808.99
Pricier than about 93% of the 1,468 comparable items (median $100.99).

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Specifications

Product
Model nameInternational version
Product typeATX Full Tower

Other versions of this model

5 more in the same range

Questions about this item

How do I confirm the four pre-installed 140 mm PWM fans and the ARGB hub are functioning after building in the GR701?

Power on the system and verify all four 140 mm fans spin — three at the front, one at the rear — then use the front LED control button to cycle lighting modes; the ARGB hub responds only when the button changes colours.

Which accessories ship inside the GR701 box and which items must I source separately?

The case includes three front 140 mm PWM fans, one rear 140 mm PWM fan, a metal GPU holder, removable dust filters for front, top and bottom, and the ARGB fan hub; motherboard, CPU cooler, GPU, power supply and storage drives are not included.

The spec sheet lists both a USB 4.0 Type-C and a USB 3.2 Gen 2x2 Type-C front port — how do I know which version my unit provides?

The manufacturer notes the front Type-C port may be either USB 4.0 or USB 3.2 Gen 2x2 depending on region; check the port marking on the front I/O panel or the shipping invoice to identify the exact standard.

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