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ASRock B450 Steel Legend Motherboard
ASRock B450 Steel Legend
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Asus Prime B450M-A Motherboard
Asus Prime B450M-A
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Asus ROG Strix B450-F Gaming Motherboard
Editiorial 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
1
1 editorial reviews
ASUS isn't always known for their bang for buck, but the ASUS PRIME B450M-K is a perfect example of it. Here's our review of this great entry-level board.Read more
Read editorial reviews
8
3.3 out of 5
4 user ratings
5 stars
25 %
4 stars
50 %
3 stars
0 %
2 stars
0 %
1 stars
0 %
Read editorial reviews
User rating
63
3.7 out of 5
63 user ratings
5 stars
23 %
4 stars
39 %
3 stars
25 %
2 stars
9 %
1 stars
1 %
78
3.7 out of 5
78 user ratings
5 stars
24 %
4 stars
32 %
3 stars
30 %
2 stars
11 %
1 stars
1 %
48
4.1 out of 5
48 user ratings
5 stars
43 %
4 stars
22 %
3 stars
29 %
2 stars
4 %
1 stars
0 %

General

Motherboard typeATXMicro-ATXATX
Processor socketSocket AM4Socket AM4Socket AM4

Memory

Supported memory bus clock
  • 2400 MHz
  • 2133 MHz
  • 2667 MHz
  • 2933 MHz
  • 3200 MHz
  • 3466 MHz
  • 3533 MHz
  • 2400 MHz
  • 2133 MHz
  • 2666 MHz
  • 2800 MHz
  • 3000 MHz
  • 3200 MHz
  • 2400 MHz
  • 2133 MHz
  • 2666 MHz
  • 2800 MHz
  • 3000 MHz
  • 3200 MHz
RAM technologyDDR4DDR4DDR4
Memory slots typeDIMMDIMMDIMM
Maximum RAM size64 GB64 GB64 GB
Number of memory slots442
Unbuffered memoryyesyesyes
Memory channelsDualDual
N/A
Non-ECCyes
N/A
yes
ECC
N/A
yes
N/A

Audio properties

Audio codecRealtek ALC892Realtek ALC887SupremeFX S1220A
Audio output channels7.17.17.1

Technical details

Compatible processor seriesAMD AAMD RyzenAMD Ryzen
Maximum number of processors111
Maximum number of SMP processors11
N/A

BIOS

BIOS typeUEFI AMIUEFI AMI
N/A
BIOS features
  • Multilingual BIOS
  • JumperFree
  • SMBIOS 2.3 support
  • UEFI BIOS
  • ACPI 5.1 support
  • Multilingual BIOS
  • ASUS Quiet Thermal Solution
  • UEFI BIOS
  • ASUS EZ Flash 3
  • ACPI 6.1 support
  • SMBIOS 3.1 support
ASUS EZ Flash 3
BIOS memory size128.0 mB128.0 mB
N/A
System Management BIOS (SMBIOS) version2.33.1
N/A
ACPI version5.16.1
N/A

Expansion slots

Number of M.2 (M) slots212

Internal I/O ports

Number of COM connectors11
N/A
CPU fan connectoryesyes
N/A
12V power connectoryesyes
N/A
ATX Power connector (24-pin)YY
N/A
TPM connectoryesyes
N/A
Number of SATA III connectors666
S/PDIF out connector
N/A
yes
N/A
Number of EATX power connectors
N/A
1
N/A
Number of chassis fan connectors
N/A
2
N/A
Front panel connector
N/A
yes
N/A

Rear panel I/O ports

S/PDIF out portyes
N/A
N/A
HDMI ports quantity11
N/A
HDMI version1.42.0b
N/A
Ethernet LAN (RJ-45) ports111
PS/2 ports quantity12
N/A
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity1
N/A
N/A
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity12
N/A
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity44
N/A
DisplayPorts quantity1
N/A
N/A
DisplayPort version1.2
N/A
N/A
VGA (D-Sub) ports quantity
N/A
1
N/A
DVI-D ports quantity
N/A
1
N/A

Network

Wi-Fino
N/A
N/A
Ethernet LAN (Network)yesyesyes
LAN controllerRealtek 8111HRealtek RTL8111HIntel I211-AT
Ethernet interface typeGigabit EthernetGigabit EthernetGigabit Ethernet

Dimensions

Width12.01 in9.61 in12.01 in
Depth9.61 in9.45 in9.61 in

Often compared with ASRock B450 Steel Legend

Often compared with Asus Prime B450M-A