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MSI

MSI MPG GUNGNIR 300R AIRFLOW WHITE PC case

SKU CH-YP90-TJRT0 MPN MPG GUNGNIR 300R AIRFLOW WHITE

White mid-tower case with mesh front panel, four pre-installed 120 mm ARGB PWM fans and tempered glass side window

  • Max graphics card length380 mm
  • Housing materialSPCC Steel / Tempered Glass
  • Supported motherboard sizesATX / E-ATX / Micro ATX / Mini ITX
  • Side panel type1 x Side Tempered Glass Panel
  • 3.5-inch internal bays2 × 3.5 in, Compatible with 2.5 inMax up to 8 × 2.5 in, Inte
  • Expansion card slots7
  • Four pre-installed 120 mm ARGB fans deliver immediate airflow
  • Supports up to ten 120 mm fans for extensive cooling capacity
  • Mesh front panel and vented side panels reduce airflow resistance
  • Tool-free adjustable graphics card stand fits GPUs up to 380 mm
  • Front USB 3.2 Gen 2 Type-C port enables fast peripheral connections

White Mid-Tower Chassis For Air-Cooled Builds

The MPG GUNGNIR 300R AIRFLOW WHITE is a mid-tower case built around a perforated mesh front panel that draws cool air straight to the components inside. It accepts ATX, E-ATX, Micro-ATX and Mini-ITX motherboards, giving system builders a wide choice of platforms. Four pre-installed 120 mm ARGB fans and an integrated ARGB plus PWM control board provide coordinated lighting and speed management out of the box. A tempered glass side panel shows the finished build while the steel structure keeps everything rigid.

Drive Capacity And Radiator Headroom

Two 3.5-inch bays handle traditional hard drives and the same trays accept up to eight 2.5-inch units when more solid-state storage is needed. The front and top each support a single radiator up to 360 mm, while the rear takes a 120 mm or 140 mm unit, so custom-loop or AIO cooling scales with the hardware chosen. Graphics cards up to 380 mm long fit without modification and CPU coolers up to 175 mm tall clear the side panel. The power supply cavity accepts units up to 220 mm deep, leaving cable routing space behind the shroud.

Adjustable GPU Stand And Front I/O

An omnidirectional graphics card stand slides and locks without tools, preventing sag on heavy cards and adapting to different mounting orientations. The front panel supplies two USB 3.2 Gen 1 ports, one USB 3.2 Gen 2 Type-C connection, two audio jacks and a fan PWM header hub for quick peripheral access. Dust filters on the front, bottom and top panels trap particulates before they reach the fans, and the filters pull out for cleaning without removing other components.

How it compares

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

Price $126.99
Pricier than about 63% of the 1,468 comparable items (median $100.99).
Max graphics card length 380 mm
Lower than about 62% of the 894 comparable items (median 400 mm).

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Specifications

Product
Brand nameMSI
Model nameGUN300RAIR
Product typeMid Tower
Product colorWhite
Storage
3.5-inch internal bays2 × 3.5 in, Compatible with 2.5 inMax up to 8 × 2.5 in, Internal 3.5 in Drive Bays
Ports & slots
Expansion card slots7
Front panel ports2 x USB 3.2 Gen 1, 1 x USB 3.2 Gen 2 Type-C, Fan PWM Header Hub, 2 x Audio
Size & build
Max graphics card length380 mm
Housing materialSPCC Steel / Tempered Glass
Side panel type1 x Side Tempered Glass Panel
Fan mounting optionsTop: 3x 120 mm or 2 × 140 mm
Front: 3x 120 mm or 3 × 140 mm
Rear: 1x 120 mm or 1 × 140 mm
Fan including:
Front: 3x 120 mm ARGB Fan
Rear: 1x 120 mm ARGB Fan
Product dimensions19.88 × 9.25 × 20.08 in
Product weight24 lb (10.9 kg)
Shipping weight13.25 kg
Package size588 × 588 × 324 mm
Compatibility
Supported motherboard sizesATX / E-ATX / Micro ATX / Mini ITX
Radiator supportTop: 120/140/240/280/360 mm radiator x 1
Front: 120/140/240/280/360 mm radiator x 1
Rear: 120/140 mm radiator x 1
CPU cooler height limit175 mm
PSU length limit220 mm
More details
Included fansFront - 3 × 120 mm / Rear - 1 × 120 mm

Questions about this item

Will an E-ATX board fit alongside the pre-installed 3 x 120 mm front fans?

The chassis supports E-ATX motherboards and ships with three 120 mm ARGB fans at the front, leaving the top and rear mounts free for additional cooling.

How can I confirm the ARGB lighting and PWM control board are functioning after assembly?

Connect the included ARGB+PWM control board to a 5 V ARGB header and a PWM fan header; the four pre-installed 120 mm fans should spin and cycle colours immediately on power-up.

Which drive brackets and mounting hardware are included, and what must I source separately?

Two 3.5-inch trays that also accept 2.5-inch drives are fitted; up to six more 2.5-inch drives can be added using the same trays, but extra trays are not supplied.

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