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Black mid-tower PC case with mesh front, tempered glass side panel, four pre-installed ARGB fans visible

MSI

MSI MAG FORGE 321R AIRFLOW PC case

SKU CH-0AK6-HSSG6 MPN MAG FORGE 321R AIRFLOW

ATX mid-tower case with mesh front and side panels, four pre-installed 120 mm ARGB fans, support for up to 11 fans, 360 mm top radiator, 390 mm GPU and 160 mm CPU cooler

  • Max graphics card length390 mm
  • Housing materialABS Plastic / SPCC Steel / Tempered Glass
  • Supported motherboard sizesMicro ATX / ITX / Mini ITX
  • Side panel type1 x Side Tempered Glass Panel
  • LED lightingARGB
  • 3.5-inch internal bays2 × 3.5 in, Compatible with 2.5 in, Max up to 3 × 2.5 in
  • Mesh front and side panels deliver strong airflow
  • Four pre-installed 120 mm ARGB fans light the build
  • Front USB 3.2 Gen 2x2 Type-C port enables fast transfers
  • Fits graphics cards up to 390 mm and 360 mm radiators
  • Magnetic dust filters on top and side simplify cleaning

Ready for 360 mm radiators and 390 mm GPUs

The MSI MAG FORGE 321R AIRFLOW is an ATX mid-tower built around a mesh front and side panel that supports up to 11 fans. It ships with four 120 mm ARGB fans already installed at the front and rear. A 4 mm tempered glass side panel shows the interior while magnetic dust filters cover the top and side vents.

Check motherboard size, cooler height and PSU length

The case accepts Micro-ATX, ITX and Mini-ITX boards only; full-size ATX boards will not fit. Verify that your CPU cooler is no taller than 160 mm and that the power supply is no longer than 200 mm. Ensure the graphics card does not exceed 390 mm in length. Confirm your front-panel header layout matches one USB 3.2 Gen 2x2 Type-C and two USB 3.2 Gen 1 Type-A ports.

Pre-installed ARGB fans

Four addressable RGB fans provide immediate airflow and lighting without extra purchases. The included ARGB control board lets you synchronise effects through a motherboard header or the case button. Magnetic dust filters on the top and side vents can be lifted off for cleaning in seconds, reducing dust build-up on components. Two 3.5-inch bays and one dedicated 2.5-inch bay handle storage, with the 3.5-inch trays also accepting 2.5-inch drives up to three total.

How it compares

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

Price $55.99
Cheaper than about 86% of the 1,468 comparable items (median $100.99).
Max graphics card length 390 mm
Lower than about 57% of the 894 comparable items (median 400 mm).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameMSI
Model nameMAG FORGE 321R AIRFLOW
Product typeATX Mid Tower
Product colorBlack
Storage
3.5-inch internal bays2 × 3.5 in, Compatible with 2.5 in, Max up to 3 × 2.5 in
2.5-inch internal bays1
Ports & slots
Expansion card slots7
Front panel ports1 x USB 3.2 Gen 2 × 2 Type-C, 2 x USB 3.2 Gen 1 Type-A, 1 x Audio
Size & build
Max graphics card length390 mm
Housing materialABS Plastic / SPCC Steel / Tempered Glass
Side panel type1 x Side Tempered Glass Panel
Product dimensions18.6 × 8.26 × 19.6 in
Product weight15.54 lb (7.05 kg)
Shipping weight8.62 kg
Package size587 × 546 × 290 mm
Compatibility
Supported motherboard sizesMicro ATX / ITX / Mini ITX
Radiator supportTop: 120/140/240/280/360 mm
Front: 120/140/240 mm
Rear : 120 mm
CPU cooler height limit160 mm
PSU length limit200 mm
More details
LED lightingARGB
Included fansFront - 3 × 120 mm / Rear - 1 × 120 mm

Questions about this item

Does the MSI MAG FORGE 321R AIRFLOW come with fans pre-installed, or do I need to buy them separately?

Four 120 mm ARGB fans are already fitted — three at the front and one at the rear — so no extra fans are required for basic airflow.

Which motherboard form factors fit inside the MAG FORGE 321R AIRFLOW?

The case accepts ATX, Micro-ATX and Mini-ITX boards, giving you the full range of standard desktop sizes.

Will a 390 mm graphics card and a 360 mm radiator fit together in this chassis?

Yes, the 390 mm GPU clearance and top-mount support for a 360 mm radiator allow both to be installed at the same time.

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