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ASRock B450M PRO4 Motherboard
ASRock B450M PRO4
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Gigabyte Z370 AORUS Ultra Gaming WIFI Motherboard
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MSI B450-A Pro - ATX Motherboard
MSI B450-A Pro - ATX
User rating
52
3.9 out of 5
52 user ratings
5 stars
34 %
4 stars
30 %
3 stars
25 %
2 stars
9 %
1 stars
0 %
43
4.0 out of 5
43 user ratings
5 stars
20 %
4 stars
53 %
3 stars
25 %
2 stars
0 %
1 stars
0 %

General

Motherboard typeMicro-ATXATXATX
Processor socketSocket AM4
LGA 1151
Socket AM4
Cooling type
N/A
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
  • 3300 MHz
  • 3400 MHz
  • 3333 MHz
  • 3466 MHz
  • 3733 MHz
  • 3600 MHz
  • 3800 MHz
  • 3666 MHz
  • 3866 MHz
  • 4000 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 channelsDualDualDual
Unbuffered memory
N/A
yes
N/A
ECC
N/A
yesyes
Non-ECC
N/A
yesyes
Extreme Memory Profile (XMP)
N/A
yes
N/A

Audio properties

Audio codecRealtek ALC892Realtek ALC1220Realtek ALC892
Audio output channels7.17.17.1

Technical details

Compatible processor seriesAMD Ryzen
  • Intel Core i3
  • Intel Core i5
  • Intel Core i7
AMD Ryzen
Maximum number of processors111
Maximum number of SMP processors
N/A
11

BIOS

BIOS typeUEFI AMIUEFI AMIUEFI AMI
BIOS features
  • Multilingual BIOS
  • JumperFree
  • SMBIOS 2.3 support
  • UEFI BIOS
  • ACPI 5.1 support
  • WfM 2.0 support
  • UEFI BIOS
  • SMBIOS 2.7 support
  • DMI 2.7 support
  • ACPI 5.0 support
  • Dual BIOS
  • BIOS FlashBack+
  • MSI ClickBIOS 5
BIOS memory size128.0 mB256.0 mB
N/A
System Management BIOS (SMBIOS) version2.32.7
N/A
ACPI version5.15.0
N/A

Internal I/O ports

Number of COM connectors1
N/A
N/A
CPU fan connectoryesyesyes
12V power connectoryesyes
N/A
ATX Power connector (24-pin)YYY
TPM connectoryesyesyes
Number of SATA III connectors466
S/PDIF out connector
N/A
yes
N/A
Thunderbolt headers
N/A
1
N/A
Number of chassis fan connectors
N/A
34
Front panel connector
N/A
yesyes
Serial port headers
N/A
N/A
1
EPS power connector (8-pin)
N/A
N/A
yes
RGB LED pin header
N/A
N/A
yes

Rear panel I/O ports

HDMI ports quantity111
Ethernet LAN (RJ-45) ports111
PS/2 ports quantity111
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity11
N/A
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity112
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity442
VGA (D-Sub) ports quantity1
N/A
1
DVI-D ports quantity1
N/A
1
S/PDIF out port
N/A
yes
N/A
Microphone input
N/A
yesyes
HDMI version
N/A
1.4
N/A
Headphone outputs
N/A
N/A
1

Network

Ethernet LAN (Network)yesyesyes
LAN controllerRealtek RTL8111H
N/A
Realtek RTL8111H
Ethernet interface typeGigabit EthernetGigabit EthernetGigabit Ethernet
Wi-Fi
N/A
yes
N/A
Wi-Fi standards
N/A
  • 802.11a
  • Wi-Fi 5
  • 802.11b
  • 802.11g
  • Wi-Fi 4
N/A
Bluetooth
N/A
yes
N/A
Bluetooth version
N/A
4.2
N/A

Dimensions

Width9.61 in12.01 in12.01 in
Depth9.61 in9.61 in9.61 in

Often compared with ASRock B450M PRO4