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ASRock AB350M-HDV Motherboard
ASRock AB350M-HDV
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ASRock B450M-HDV Motherboard
ASRock B450M-HDV
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ASRock B450M PRO4 Motherboard
ASRock B450M PRO4
User rating
36
4.1 out of 5
36 user ratings
5 stars
38 %
4 stars
36 %
3 stars
25 %
2 stars
0 %
1 stars
0 %
49
3.9 out of 5
49 user ratings
5 stars
32 %
4 stars
32 %
3 stars
24 %
2 stars
8 %
1 stars
2 %
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 typeMicro-ATXMicro-ATXMicro-ATX
Processor socketSocket AM4Socket AM4Socket AM4

Memory

Supported memory bus clock
  • 2400 MHz
  • 2133 MHz
  • 2667 MHz
  • 2400 MHz
  • 2133 MHz
  • 2667 MHz
  • 2933 MHz
  • 3200 MHz
  • 2400 MHz
  • 2133 MHz
  • 2667 MHz
  • 2933 MHz
  • 3200 MHz
RAM technologyDDR4DDR4DDR4
Memory slots typeDIMMDIMMDIMM
Maximum RAM size32 GB32 GB64 GB
Number of memory slots224
Unbuffered memoryyes
N/A
N/A
Memory channelsDualDualDual
ECCyes
N/A
N/A
Non-ECCyes
N/A
N/A

Audio properties

Audio codecRealtek ALC887Realtek ALC887Realtek ALC892
Audio output channels7.17.17.1

Graphics

Maximum resolution
  • 4096
  • 2160
  • 4096
  • 2160
N/A
Number of displays supported333
HDCPyes
N/A
N/A
DirectX version
N/A
12.012.0

Technical details

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

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
  • Multilingual BIOS
  • JumperFree
  • SMBIOS 2.3 support
  • UEFI BIOS
  • ACPI 5.1 support
ACPI version5.15.15.1
BIOS memory size
N/A
128.0 mB128.0 mB
System Management BIOS (SMBIOS) version
N/A
2.32.3

Internal I/O ports

Number of COM connectors1
N/A
1
CPU fan connectoryesyesyes
Number of chassis fan connectors21
N/A
12V power connectoryesyesyes
ATX Power connector (24-pin)YYY
TPM connectoryesyesyes
Number of SATA III connectors444

Rear panel I/O ports

Microphone inputyes
N/A
N/A
Headphone outputs1
N/A
N/A
HDMI ports quantity111
Ethernet LAN (RJ-45) ports111
PS/2 ports quantity211
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity644
VGA (D-Sub) ports quantity111
DVI-D ports quantity111
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity
N/A
N/A
1
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity
N/A
N/A
1

Network

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

Dimensions

Width9.09 in9.09 in9.61 in
Depth8.11 in8.11 in9.61 in

Often compared with ASRock B450M-HDV

Often compared with ASRock B450M PRO4