MSI MAG Series User manual

MAG Series
PC Case
MAG FORGE 320R AIRFLOW
MAG FORGE 120A AIRFLOW
User Guide

2
Contents
Specifications.....................................................................................................3
Accessories........................................................................................................5
Case Features (320R) ........................................................................................6
Case Features (120A).........................................................................................7
Side and Front View...........................................................................................8
I/O and Buttons (320R).......................................................................................9
I/O and Buttons (120A).....................................................................................10
Side Panel Removal.........................................................................................11
Front Bezel Removal .......................................................................................12
Motherboard Installation.................................................................................13
Graphics Card Installation...............................................................................14
SSD & HDD Installation (320R)........................................................................15
SSD & HDD Installation (120A)........................................................................16
PSU Installation ...............................................................................................17
Top Panel I/O Connection ................................................................................18
Control Board Connection (320R)....................................................................19
Control Board Connection (120A)....................................................................21
General Information ........................................................................................22

3
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

4
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

5
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

6
Case Features (320R)

7
Case Features (120A)

8
Side and Front View
320R
120A
472.5mm
411.6mm
210mm
210mm
498mm 498mm

9
I/O and Buttons (320R)
11
11
22
33
44
55
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

10
I/O and Buttons (120A)
112222
33
44
55
66
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

11
Side Panel Removal
1
2

12
Front Bezel Removal

13
Motherboard Installation

14
Graphics Card Installation
1
2
3

15
SSD & HDD Installation (320R)

16
SSD & HDD Installation (120A)
SSD
SSD

17
PSU Installation

18
Top Panel I/O Connection
JUSB
(USB 3.2 Gen1)
HD AUDIO
JAUD1 JFP1
F_PANEL

19
1
D
+5V
Control Board Connection (320R)
ARGB LED
ARGB LED
LED Switch button
Power supply’s
SATA connector
Motherboard ARGB
connector
ARGB connector
ARGB connector
Motherboard’s Fan connector
ARGB extension cable
ARGB strip
Addressable RGB LED Strip Connection
Addressable RGB LED Fan Connection
ARGB Fan
ARGB ARGB RGB

20
⚠
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