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MSI B450-A Pro - ATX Motherboard
MSI B450-A Pro - ATX
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MSI B450-A Pro MAX Motherboard
MSI B450-A Pro MAX
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MSI B450 Tomahawk Motherboard
MSI B450 Tomahawk
Editiorial reviews
5
4.2 out of 5
3 user ratings
5 stars
33 %
4 stars
66 %
3 stars
0 %
2 stars
0 %
1 stars
0 %
Read editorial reviews
User rating
43
4.0 out of 5
43 user ratings
5 stars
20 %
4 stars
53 %
3 stars
25 %
2 stars
0 %
1 stars
0 %
59
4.0 out of 5
59 user ratings
5 stars
38 %
4 stars
37 %
3 stars
15 %
2 stars
5 %
1 stars
3 %
48
4.0 out of 5
48 user ratings
5 stars
31 %
4 stars
39 %
3 stars
25 %
2 stars
4 %
1 stars
0 %

General

Motherboard typeATXATXATX
Processor socketSocket AM4Socket AM4Socket AM4
Cooling typePassive
N/A
Passive

Memory

Supported memory bus clock
  • 2400 MHz
  • 1866 MHz
  • 2133 MHz
  • 2667 MHz
  • 2800 MHz
  • 2933 MHz
  • 3000 MHz
  • 2667 MHz
  • 3200 MHz
  • 3466 MHz
  • 3066 MHz
  • 2400 MHz
  • 1866 MHz
  • 2133 MHz
  • 2667 MHz
  • 2800 MHz
  • 2933 MHz
  • 3000 MHz
  • 2667 MHz
  • 3200 MHz
  • 3466 MHz
  • 3733 MHz
  • 3866 MHz
  • 4000 MHz
  • 4133 MHz
  • 3066 MHz
  • 2400 MHz
  • 1866 MHz
  • 2133 MHz
  • 2667 MHz
  • 2800 MHz
  • 2933 MHz
  • 3000 MHz
  • 2667 MHz
  • 3200 MHz
  • 3466 MHz
  • 3066 MHz
RAM technologyDDR4DDR4DDR4
Memory slots typeDIMMDIMMDIMM
Maximum RAM size64 GB64 GB64 GB
Number of memory slots444
Memory channelsDual
N/A
Dual
ECCyes
N/A
yes
Non-ECCyes
N/A
yes

Audio properties

Audio codecRealtek ALC892Realtek ALC892Realtek ALC892
Audio output channels7.17.17.1

Graphics

Parallel processing technology support2-Way CrossFireXCrossfire2-Way CrossFireX
Maximum resolution
  • 4096
  • 2160
N/A
  • 4096
  • 2160
DirectX version
N/A
12.0
N/A

Technical details

Compatible processor seriesAMD RyzenAMD RyzenAMD Ryzen
Maximum number of processors111
Maximum number of SMP processors1
N/A
1

Storage

Supported drive types
  • HDD
  • SSD
N/A
  • HDD
  • SSD
RAID levels
  • 0
  • 1
  • 10
  • 0
  • 1
  • 10
  • 0
  • 1
  • 10
Number of HDDs supported6
N/A
6
Supported storage drive interfaces
N/A
Serial ATA III
N/A

Internal I/O ports

Serial port headers111
CPU fan connectoryes
N/A
yes
Number of chassis fan connectors4
N/A
4
EPS power connector (8-pin)yes
N/A
yes
ATX Power connector (24-pin)Y
N/A
Y
TPM connectoryesyesyes
RGB LED pin headeryes
N/A
yes
Number of SATA III connectors666
Front panel connectoryes
N/A
yes

Rear panel I/O ports

Microphone inputyes
N/A
yes
Headphone outputs1
N/A
1
HDMI ports quantity111
Ethernet LAN (RJ-45) ports111
PS/2 ports quantity1
N/A
1
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity221
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity222
VGA (D-Sub) ports quantity11
N/A
DVI-D ports quantity111
HDMI version
N/A
N/A
1.4
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity
N/A
N/A
1

Network

Ethernet LAN (Network)yesyesyes
LAN controllerRealtek RTL8111HRealtek 8111HRealtek RTL8111H
Ethernet interface typeGigabit EthernetGigabit EthernetGigabit Ethernet
Wi-Fi
N/A
no
N/A

Dimensions

Width12.01 in12.01 in12.01 in
Depth9.61 in9.61 in9.61 in

Often compared with MSI B450-A Pro MAX

Often compared with MSI B450 Tomahawk