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ASRock AB350M Pro4 Motherboard
ASRock AB350M Pro4
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ASRock B450M PRO4 Motherboard
ASRock B450M PRO4
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MSI B450 Tomahawk Motherboard
MSI B450 Tomahawk
Editiorial reviews
2
2 editorial reviews
Do you need the latest and greatest X470 motherboard to seize the performance potential of the newly refreshed AMD Ryzen processor line? ASRock doesn't think so and is out to prove it with this exceptionally inexpensive B350 Micro ATX board.Read more
Thanks to ASRock, we’ll be taking a look at the ASRock AB350M Pro4 Motherboard. This motherboard comes in a micro-ATX form factor and features AMD’s B350 chipset, suitable for all Ryzen processors (AM4 socket), including their ...Read more
Read editorial reviews
2
2 editorial reviews
We kick off our AMD B450 chipset reviews with the ASRock B450M Pro4 mATX motherboard, a budget option for those wanting an entry into the world of AMD Ryzen CPUs....Read more
Conclusion and Verdict The B450M Pro4 motherboard is a really interesting option for gamers with a lower budget. It supports most new technologies, all AM4 processors, memory up to DDR4-3466, two M.2 SSD and many ...Read more
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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
36
4.3 out of 5
36 user ratings
5 stars
47 %
4 stars
36 %
3 stars
16 %
2 stars
0 %
1 stars
0 %
51
3.9 out of 5
51 user ratings
5 stars
35 %
4 stars
31 %
3 stars
25 %
2 stars
7 %
1 stars
0 %
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 typeMicro-ATXMicro-ATXATX
Processor socketSocket AM4Socket AM4Socket AM4
Cooling type
N/A
N/A
Passive

Memory

Supported memory bus clock
  • 2400 MHz
  • 2133 MHz
  • 2667 MHz
  • 2400 MHz
  • 2133 MHz
  • 2667 MHz
  • 2933 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
RAM technologyDDR4DDR4DDR4
Memory slots typeDIMMDIMMDIMM
Maximum RAM size64 GB64 GB64 GB
Number of memory slots444
Unbuffered memoryyes
N/A
N/A
Memory channelsDualDualDual
ECCyes
N/A
yes
Non-ECCyes
N/A
yes

Audio properties

Audio codecRealtek ALC892Realtek ALC892Realtek ALC892
Audio output channels7.17.17.1

Technical details

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

BIOS

BIOS typeUEFIUEFI AMIUEFI AMI
BIOS features
  • JumperFree
  • SMBIOS 2.3 support
  • UEFI BIOS
  • Multilingual BIOS
  • JumperFree
  • SMBIOS 2.3 support
  • UEFI BIOS
  • ACPI 5.1 support
  • BIOS FlashBack+
  • MSI ClickBIOS 5
ACPI version5.15.1
N/A
BIOS memory size
N/A
128.0 mB
N/A
System Management BIOS (SMBIOS) version
N/A
2.3
N/A

Internal I/O ports

Number of COM connectors11
N/A
CPU fan connectoryesyesyes
Number of chassis fan connectors2
N/A
4
12V power connectoryesyes
N/A
EPS power connector (8-pin)yes
N/A
yes
ATX Power connector (24-pin)YYY
TPM connectoryesyesyes
Number of SATA III connectors446
Serial port headers
N/A
N/A
1
RGB LED pin header
N/A
N/A
yes
Front panel connector
N/A
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 quantity211
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity1
N/A
N/A
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity442
VGA (D-Sub) ports quantity11
N/A
DVI-D ports quantity111
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity
N/A
11
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity
N/A
11
HDMI version
N/A
N/A
1.4

Network

Ethernet LAN (Network)yesyesyes
LAN controllerRealtek RTL8111GRRealtek RTL8111HRealtek RTL8111H
Ethernet interface typeGigabit EthernetGigabit EthernetGigabit Ethernet

Dimensions

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

Often compared with ASRock B450M PRO4

Often compared with MSI B450 Tomahawk