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 AutoRGB fans Front: 3 x 120mm AutoRGB fans Rear: 1 x 120mm AutoRGB 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 1 x Micphone jack |
| Buttons | 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 x5 | Cable management |
 |
Screw #6-32 10mm x2 | Securing drive tray |
 |
Stand-off #6-32 6.5mm x4 | Motherboard Stud |
 |
Screw M3 5mm x20 | Motherboard / SSD |
 |
Screw #6-32 6mm x6 | Securing PSU / PCIe Card |
 |
Screw #6-32 5mm x4 | 3.5” HDD |
 |
PCIe slot cover x2 | PCIe slot protection |
 |
1 to 4 fan splitter cable x1 (For 320R only) |
Connecting 4 fans |
Case Features (320R)
Case Features (120A)
Side and Front View
320R
120A
| 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 |
| 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
Front Bezel Removal
Motherboard Installation
Graphics Card Installation
SSD & HDD Installation (320R)
SSD & HDD Installation (120A)
PSU Installation
Top Panel I/O Connection
Control Board Connection (320R)
- ARGB LED
- LED Switch button
- Motherboard ARGB connector
- Power supply’s SATA connector
Addressable RGB LED Strip Connection
- ARGB connector
- ARGB extension cable
- ARGB strip
Addressable RGB LED Fan Connection
- ARGB connector
- Motherboard’s Fan connector
- ARGB Fan
- ARGB
- RGB
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.
- Supports a maximum of 128 LEDs. Exceeding this limit may result in overheating, abnormal colors, or malfunctions.
- Please ensure all cables are securely connected before powering on.
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:
| 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)
- Auto-RGB Fan
- LED Switch button
- Power supply’s SATA connector
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.
Documents / Resources
 |
MSI MAG Series Gaming Desktop Computer [pdf] User Guide MAG Series Gaming Desktop Computer, MAG Series, Gaming Desktop Computer, Desktop Computer, Computer |
 |
msi MAG Series Gaming Desktop [pdf] User Guide MEG MAESTRO 700L PZ, MAG Series Gaming Desktop, MAG Series, Gaming Desktop, Desktop |
