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ASRock B450 Pro4 Motherboard
ASRock B450 Pro4
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ASRock B450 Steel Legend Motherboard
ASRock B450 Steel Legend
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ASRock B450M PRO4 Motherboard
ASRock B450M PRO4
Editiorial 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
Today we will present ASRock B450M Pro4 so a cheaper gaming motherboard which offers more than we could expect. Recently small motherboards are becoming more popular in gaming computers because they offer about as much ...Read more
Read editorial reviews
5
5 editorial reviews
The Steel Legend series of motherboards according to ASRock represents the philosophical state of rock-solid durability and irresistible aesthetics. It’s built around most demanding specs and features, providing high quality components and materials to ensure ...Read more
The ASRock B450M Steel Legend is quite highly recommended for a budget AM4 board, and we just took it upon ourselves to see how good it truly is.Read more
If you're looking for a feature-rich B450 motherboard under £100, the ASRock B450 Steel Legend may be the option for you. Check out what we thought....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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User rating
62
3.9 out of 5
62 user ratings
5 stars
35 %
4 stars
30 %
3 stars
25 %
2 stars
6 %
1 stars
1 %
63
3.7 out of 5
63 user ratings
5 stars
23 %
4 stars
39 %
3 stars
25 %
2 stars
9 %
1 stars
1 %
52
3.9 out of 5
52 user ratings
5 stars
34 %
4 stars
30 %
3 stars
25 %
2 stars
9 %
1 stars
0 %

General

Motherboard typeATXATXMicro-ATX
Processor socketSocket AM4Socket AM4Socket AM4

Memory

Supported memory bus clock
  • 2400 MHz
  • 2133 MHz
  • 2667 MHz
  • 2933 MHz
  • 3200 MHz
  • 2400 MHz
  • 2133 MHz
  • 2667 MHz
  • 2933 MHz
  • 3200 MHz
  • 3466 MHz
  • 3533 MHz
  • 2400 MHz
  • 2133 MHz
  • 2667 MHz
  • 2933 MHz
  • 3200 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
Non-ECC
N/A
yes
N/A

Audio properties

Audio codecRealtek ALC892Realtek ALC892Realtek ALC892
Audio output channels7.17.17.1

Graphics

DirectX version12.012.012.0
Maximum resolution
  • 4096
  • 2160
  • 4096
  • 2160
N/A
Number of displays supported3
N/A
3
Parallel processing technology support
N/A
  • CrossFireX
  • Quad-GPU CrossFireX
N/A
HDCP
N/A
yes
N/A

Technical details

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

BIOS

BIOS typeUEFI AMIUEFI AMIUEFI AMI
BIOS features
  • Multilingual BIOS
  • JumperFree
  • SMBIOS 2.3 support
  • UEFI BIOS
  • ACPI 5.1 support
  • Multilingual BIOS
  • JumperFree
  • SMBIOS 2.3 support
  • UEFI BIOS
  • ACPI 5.1 support
  • Multilingual BIOS
  • JumperFree
  • SMBIOS 2.3 support
  • UEFI BIOS
  • ACPI 5.1 support
BIOS memory size128.0 mB128.0 mB128.0 mB
System Management BIOS (SMBIOS) version2.32.32.3
ACPI version5.15.15.1

Internal I/O ports

Number of COM connectors111
CPU fan connectoryesyesyes
12V power connectoryesyesyes
ATX Power connector (24-pin)YYY
TPM connectoryesyesyes
Number of SATA III connectors664

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 quantity111
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity111
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity444
VGA (D-Sub) ports quantity1
N/A
1
DisplayPorts quantity11
N/A
S/PDIF out port
N/A
yes
N/A
HDMI version
N/A
1.4
N/A
DisplayPort version
N/A
1.2
N/A
DVI-D 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 in9.61 in
Depth8.82 in9.61 in9.61 in

Often compared with ASRock B450 Pro4

Often compared with ASRock B450 Steel Legend

Often compared with ASRock B450M PRO4