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Friday | July 29, 2016
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GMC R-3 Corona Case

GMC R-3 Corona Case


GMC are a Korean manufacturer of PC cases and they are continuously trying to design innovative and functional products for enthusiasts who would like to have something a little different. Today we will take a look at one of their latest creations, the R-3 ‘Corona’. The R-3 is a tower case designed to fit a standard ATX system but with the minimum possible dimensions, making it considerably smaller than any standard ATX case out there. Of course such a design has downsides as well as advantages which we will examine in this review.

Manufacturer Features and Specifications


R-3 ‘Corona’

( W x D x H )

Chassis 170 x 350 x 420mm
Carton Box 220 x 420 x 480mm



Multi Port

USB 2.0 x 2port, Audio + MIC

Form Factor


Drive Bay

5.25" x 1, 3.5" x 2(Int)

Expansion Slots

7 Slots

M/B Size

ATX, Micro ATX, Full ATX


Net : 3.2Kg


Rear : 80mm x 2pcs
Bottom : 80mm

Packaging and Bundle

Product image Product image

Product image

The R-3 Corona is supplied in such a small cardboard box you will find it hard to believe there is an ATX case inside. The artwork is minimal but it feels sturdy enough and the case is held by two thick Styrofoam pieces providing ample protection during transport. The bundle is very basic; a plastic bag with the necessary screws, an extension slot cover and a minimalistic manual.

About Author

Stuart Davidson

Stuart Davidson is Senior Editor at HardwareHeaven having joined the site in 2002.