MSI MPG Gungnir 300R Airflow Mid-Tower E-ATX PC Case White

High-Airflow Mid-Tower Chassis for E-ATX Builds

The MSI MPG Gungnir 300R is a mid-tower chassis built around a one-piece 1 mm perforated front panel and a 3 mm tempered glass side window. Four 120 mm ARGB PWM fans ship pre-installed, three at the front and one at the rear, and MSI Mystic Light controls the lighting.

The motherboard tray accepts E-ATX boards up to 280 x 305 mm, plus ATX, Micro-ATX and Mini-ITX. Graphics cards run to 360 mm and CPU coolers to 175 mm. Seven expansion slots sit behind a push-latch PCIe bracket, and the ATX power supply bay clears units longer than 220 mm.

Cooling capacity covers up to ten fans. Front and top mounts each take a 360 mm radiator at the same time, with 80 mm of clearance for a push-pull stack. The PSU shroud holds two additional 120 mm fans, and the vertical GPU bracket takes two 60 mm blowers.

Key Features

• Perforated Steel Front Intake
  A single 1 mm steel sheet with a dense hole pattern feeds air to the triple front fans without a mesh filter bottleneck.

• Four Pre-Installed ARGB PWM Fans
  Three 120 mm front intakes and one 120 mm rear exhaust arrive wired to the integrated ARGB and PWM control board.

• Dual 360 mm Radiator Mounts
  Front and top trays each accept a 360 mm radiator, and 80 mm of offset space supports a push-pull fan arrangement.

• Graphics Card Support

  • 360 mm horizontal clearance for triple-fan cards.
  • Vertical mounting through a rotating, height-adjustable bracket.
  • Omnidirectional stand adjusts without tools to brace heavy cards.

• Storage Layout
  Two 2.5-inch or 3.5-inch bays sit in the shroud, and four dedicated 2.5-inch mounts sit behind the motherboard tray.

• Front I/O Panel
  The panel carries two USB 3.2 Gen 1 Type-A ports at 5Gb/s, one USB 3.2 Gen 2×2 Type-C port at 20Gb/s, and separate mic and audio jacks.

Specifications

What’s in the Box

• MPG GUNGNIR 300R AIRFLOW WHITE chassis

• Four pre-installed 120 mm ARGB PWM fans

• Accessory box with mounting screws and standoffs

• Graphics card support stand

• Quick installation guide

Why Choose the Gungnir 300R White

• The E-ATX mid-tower case fits flagship boards without crowding the cable channels.

• Perforated intake geometry and four bundled spinners deliver airflow from the first boot.

• Dual 360 mm radiator positions let builders run separate CPU and GPU loops.

• Push-latch panels and a tool-free bracket shorten assembly and later upgrades.

• A white gaming chassis keeps internal components visible through the glass panel.

• The 20Gb/s Type-C header suits modern motherboards and fast external storage.

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