MSI MAG Series PC Case
MAG FORGE 320R AIRFLOW & MAG FORGE 120A AIRFLOW
User Guide
Specifications
Comparison of Key Differences
| Product Name | MAG FORGE 320R AIRFLOW | MAG FORGE 120A AIRFLOW |
| Dimensions (DxWxH) | 472.5 x 210 x 498 mm | 411.6 x 210 x 498 mm |
| Top Radiator Support | 120/140/240 / 280 / 360 mm | 120/240 mm |
| Pre-installed Fan | Top: No Front: 3 x 120mm ARGB fans Rear: 1 x 120mm ARGB fan | Top: 2 x 120mm Auto-RGB fans Front: 3 x 120mm Auto-RGB fans Rear: 1 x 120mm Auto-RGB fan |
| Side Fans Support | 2 x 120mm | No |
| Maximum GPU Length | 390mm (Pre-installed front fan) | 330mm (Pre-installed front fan) |
| Drive Bays | 1 x 2.5" SSD 2 x Combo 3.5"/2.5" | 3 x 2.5" SSD 2 x 3.5" HDD |
| LED Controller | LED controller with Mystic Light Sync | LED controller (Standalone) |
Basic Information
| Case Type | Mid Tower |
| Supported Motherboard Sizes | ATX, Micro-ATX, Mini-ITX |
Cooling Fan Support
| Top | 3 x 120mm or 2 x 140mm |
| Front | 3 x 120mm or 2 x 140mm |
| Rear | 1 x 120mm |
| PSU Shroud | 2 x 120mm |
Expansion Slots
| PCIe Slots | 7 slots |
I/O Ports and Buttons
| USB Ports | 2 x USB 3.2 Gen1 Type-A |
| Audio Ports | 1 x Audio jack |
| Buttons | 1 x Micphone jack 1 x Reset button (120A / 320L) 1 x Power button 1 x LED switch button (120A / 320R) |
Chassis Clearances
| Maximum CPU Cooler Height | 160mm |
| Front Radiator Support | 120 / 140 / 240 mm |
| PSU Support | 160mm (with 3.5” HDD tray) 200mm (without 3.5” HDD tray) |
Materials
| Metal Specification | SPCC 0.5 |
| Front Bezel Material | Mesh + Plastic |
| Left Side Panel | 4mm tempered glass |
| Dust Filter | Top: Magnetic filter Side: Magnetic filter Bottom: Plastic filter |
Accessories
| Item | Name / Q'ty | Used for |
| [Cable Ties] | Cable ties x5 | Cable management |
| [Screw] | Screw #6-32 10mm x2 | Securing drive tray |
| [Standoff] | Standoff #6-32 6.5mm x4 | Motherboard Stud |
| [Screw] | Screw M3 5mm x20 | Motherboard / SSD |
| [Screw] | Screw #6-32 6mm x6 | Securing PSU / PCIe Card |
| [Screw] | Screw #6-32 5mm x4 | 3.5" HDD |
| [PCIe Slot Cover] | PCIe slot cover x2 | PCIe slot protection |
| [Fan Splitter Cable] | 1 to 4 fan splitter cable x1 (For 320R only) | Connecting 4 fans |
Case Features (320R)
Diagram showing the components of the MAG Forge 320R case.
Case Features (120A)
Diagram showing the components of the MAG Forge 120A case.
Side and Front View
320R
Diagram showing the side and front dimensions of the MAG Forge 320R case.
120A
Diagram showing the side and front dimensions of the MAG Forge 120A case.
I/O and Buttons (320R)
Diagram illustrating the I/O ports and buttons on the 320R model.
| Item | Description |
| 1 | USB 3.2 Gen 1 5Gbps Type-A port |
| 2 | Microphone jack |
| 3 | Audio jack |
| 4 | LED switch button |
| 5 | Power button |
I/O and Buttons (120A)
Diagram illustrating the I/O ports and buttons on the 120A model.
| Item | Description |
| 1 | LED switch button |
| 2 | USB 3.2 Gen 1 5Gbps Type-A port |
| 3 | Microphone jack |
| 4 | Audio jack |
| 5 | Reset button |
| 6 | Power button |
Side Panel Removal
Diagram illustrating the process of removing the side panel, indicated by numbered steps and arrows.
Front Bezel Removal
Diagram showing how to remove the front bezel of the PC case.
Motherboard Installation
Diagram illustrating the installation of a motherboard into the PC case, showing screw placements.
Graphics Card Installation
Diagram showing the steps for installing a graphics card, including removing expansion slot covers and securing the card.
SSD & HDD Installation (320R)
Diagram illustrating the installation of SSD and HDD drives in the MAG Forge 320R case, with close-ups of drive mounting.
SSD & HDD Installation (120A)
Diagram illustrating the installation of SSD and HDD drives in the MAG Forge 120A case, with close-ups of drive mounting.
PSU Installation
Diagram showing the installation of the Power Supply Unit (PSU) into the PC case.
Top Panel I/O Connection
Diagram showing the connections for the top panel I/O, including USB 3.2 Gen1, HD AUDIO, and F_PANEL headers.
Control Board Connection (320R)
Addressable RGB LED Strip Connection
Diagram showing the connection of an ARGB LED strip to the control board, including extension cables and connectors.
Addressable RGB LED Fan Connection
Diagram showing the connection of ARGB fans to the control board and motherboard fan headers, with correct and incorrect connection examples.
IMPORTANT
- Please always turn off the power supply and unplug the power cord from the power outlet before installing or removing the ARGB LED Strip.
- Please ensure all cables are securely connected before powering on.
- This LED Hub can support up to 10 MSI devices or 6 non-MSI devices.
- Each port can support a maximum of 64 ARGB LEDs, with a total of no more than 128 LEDs.
- Exceeding these limits may cause ARGB LEDs to display abnormal colors, flicker, or be unable to change colors.
LED Switch Button Function (320R)
- Single press to toggle between LED effects.
- Long press for three seconds to sync with the motherboard.
LED Effect Sequence (320R)
After pressing the LED Switch button, the LED effect sequence is as follows:
| Effect | |
| 1 | Solid red |
| 2 | Solid green |
| 3 | Solid blue |
| 4 | Solid purple |
| 5 | Solid cyan |
| 6 | Solid yellow |
| 7 | Solid white |
| 8 | Rainbow color cycling |
| 9 | Color running effect |
| 10 | Gradient color transition effect |
| 11 | Rainbow color breathing |
| 12 | Color breathing |
| 13 | Rainbow flashing |
| 14 | Color flashing |
Control Board Connection (120A)
Diagram showing the connections for Auto-RGB fans and the LED switch button on the 120A model.
IMPORTANT
- The control board's fan header is a special specification and is not compatible with standard ARGB and RGB fans.
- Please always turn off the power supply and unplug the power cord from the power outlet before installing or removing the Auto-RGB fan.
- Please ensure all cables are securely connected before powering on.
LED Switch Button Function (120A)
- Single press for RGB rainbow effect.
- Press again to turn off LED lighting.
General Information
Copyright and Trademarks Notice
Copyright © Micro-Star Int'l Co., Ltd. All rights reserved. The MSI logo used is a registered trademark of Micro-Star Int'l Co., Ltd. All other marks and names mentioned may be trademarks of their respective owners. No warranty as to accuracy or completeness is expressed or implied. MSI reserves the right to make changes to this document without prior notice.
All text, images, illustrations, and other content in this manual are the property of MSI. No part of this manual may be reproduced, distributed, or used in any form without the written permission of MSI.
Revision History
- Version 1.0, 2023/08, First release.
- Version 1.1, 2024/05, Modifying the note for the ARGB LED Hub.
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