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Compare 5 products

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ASRock B450M PRO4 Motherboard
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Asus Prime B450M-A Motherboard
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MSI B450-A Pro - ATX Motherboard
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MSI B450-A Pro MAX Motherboard
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MSI B450M Gaming PLUS Motherboard

General

Motherboard typeMicro-ATXMicro-ATXATXATXMicro-ATX
Processor socketSocket AM4Socket AM4Socket AM4Socket AM4Socket AM4
Cooling type
N/A
N/A
Passive
N/A
Passive

Memory

Supported memory bus clock
  • 2400 MHz
  • 2133 MHz
  • 2667 MHz
  • 2933 MHz
  • 3200 MHz
  • 2400 MHz
  • 2133 MHz
  • 2666 MHz
  • 2800 MHz
  • 3000 MHz
  • 3200 MHz
  • 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 technologyDDR4DDR4DDR4DDR4DDR4
Memory slots typeDIMMDIMMDIMMDIMMDIMM
Maximum RAM size64 GB64 GB64 GB64 GB32 GB
Number of memory slots44442
Memory channelsDualDualDual
N/A
Dual
Unbuffered memory
N/A
yes
N/A
N/A
N/A
ECC
N/A
yesyes
N/A
yes
Non-ECC
N/A
N/A
yes
N/A
yes

Audio properties

Audio codecRealtek ALC892Realtek ALC887Realtek ALC892Realtek ALC892Realtek ALC887
Audio output channels7.17.17.17.17.1

Technical details

Compatible processor seriesAMD RyzenAMD RyzenAMD RyzenAMD RyzenAMD Ryzen
Maximum number of processors11111
Maximum number of SMP processors
N/A
11
N/A
1

Internal I/O ports

Number of COM connectors11
N/A
N/A
N/A
CPU fan connectoryesyesyes
N/A
N/A
12V power connectoryesyes
N/A
N/A
yes
ATX Power connector (24-pin)YYY
N/A
Y
TPM connectoryesyesyesyesyes
Number of SATA III connectors46664
S/PDIF out connector
N/A
yes
N/A
N/A
N/A
Number of EATX power connectors
N/A
1
N/A
N/A
N/A
Number of chassis fan connectors
N/A
24
N/A
N/A
Front panel connector
N/A
yesyes
N/A
yes
Serial port headers
N/A
N/A
111
EPS power connector (8-pin)
N/A
N/A
yes
N/A
yes
RGB LED pin header
N/A
N/A
yes
N/A
yes

Rear panel I/O ports

HDMI ports quantity11111
Ethernet LAN (RJ-45) ports11111
PS/2 ports quantity121
N/A
N/A
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity1
N/A
N/A
N/A
N/A
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity1222
N/A
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity44224
VGA (D-Sub) ports quantity1111
N/A
DVI-D ports quantity11111
HDMI version
N/A
2.0b
N/A
N/A
1.4
Microphone input
N/A
N/A
yes
N/A
N/A
Headphone outputs
N/A
N/A
1
N/A
N/A

Network

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

Dimensions

Width9.61 in9.61 in12.01 in12.01 in9.61 in
Depth9.61 in9.45 in9.61 in9.61 in8.27 in

Often compared with ASRock B450M PRO4

Often compared with Asus Prime B450M-A

Often compared with MSI B450-A Pro MAX