CPU

CPU Socket	Socket AM4
CPU Brand	AMD
Installed Processors (Max)	0 (1)
Supported Processor Manufacturer	AMD
Supported Processors	AMD Ryzen 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series Desktop Processors
64-bit Support	Yes
Socket	AM4

Rear Panel I/O Ports

USB Ports	2 x USB 3.1 4 x USB 3.0
HDMI Port	1 x HDMI 2.1
VGA Port	1 x D-Sub
Keyboard/Mouse Combo Port	1 x PS/2
RJ-45 Ports	1 x RJ-45
Digital Port	1 x DVI-D
Audio Line In Ports	1 x 3.5mm Jack
Audio Line Out Ports	1 x 3.5mm Jack
Microphone In Port	1 x 3.5mm Jack
Antenna Connector(s)	2 x SMA Antenna

Internal I/O Connectors

SATA Connectors	4 x SATA III
USB Connectors	1 x USB 3.0 header (supports 2 ports) 2 x USB 2.0 headers (supports 4 ports)
Speaker	1 x Speaker header
Front Panel Connectors	1 x Front Panel 1 x Front Audio
Cooling Fan Support	1 x CPU fan header 1 x CPU OPT fan header 2 x Chassis fan headers
Serial Connectors	1 x COM header
TPM Header	1 x SPI TPM header
Power Connector Port	1 x 24-pin ATX 1 x 8-pin EPS
Other Connectors	1 x M.2 slot, Key M, Type 2242/2260/2280/22110 (PCIe Gen4 or SATA) 1 x M.2 slot, Key M, Type 2242/2260/2280/22110 (PCIe Gen3 or SATA) 1 x M.2 slot, Key M, Type 2242/2260/2280 (PCIe Gen3 or SATA) 1 x 3-pin ARGB LED headers 2 x 4-pin RGB LED headers

Memory

Memory Bus Speed	Up to 4866 MHz
Memory Type	DDR4
Maximum RAM	128 GB
Memory Slot	4 x DIMM

Motherboard

Northbridge	AMD B550
RAID Supported	Yes
RAID Format	RAID 0, 1, 10
SATA Supported	Yes

Expansion

Number of PCI Express Slots

1 x PCI Express 4.0 x16 slot 2 x PCI Express 3.0 x1 slots

Graphics Device

Integrated Graphics Supported

Yes

Sound

Integrated Sound

Realtek

Warranty

Warranty

3 Years

Network

Integrated Network	Realtek
Network Speeds Supported	Up to 1 Gbps
Wireless LAN	Yes (Wi-Fi 6)
Bluetooth	Yes
Bluetooth Version	5.2

System Requirements

Operating Systems Supported

Microsoft Windows 11 / 10 64-bit

System

Jumpers	1 x Clear CMOS
Software Included (may be trial or restricted)	Yes
Drivers	Yes

Physical

Form Factor	mATX Motherboard
In The Box	Motherboard 2 x SATA Cables ASUS Wi-Fi Moving Antennas I/O Shield M.2 SSD Screw Package Support DVD User Manual
Width	244 mm
Length	244 mm

Key Features

Firewire
IDE/EIDE Supported
SCSI/SAS Supported
Wireless Network	Yes
Chipset Manufacturer	AMD
Number of PCI Slots	slot(s)
Number of PCI-X Slots	slot(s)
Main Colour
Socket(s)
Memory Channel	Dual
On-board Audio Type	7.1
Number of SATA Ports	4 port(s)
Number of USB Ports	6 port(s)
SATA III Support	Yes
USB 3.0 Support	Yes
Multi GPU Support	No
VGA Connection	Yes
DVI Connection	Yes
HDMI Connection	Yes
DisplayPort Connection	No
Motherboard Form Factor	mATX
Wake on LAN
Motherboard Power Connectors	4 + 4-Pin
Motherboard Chipset	AMD B550
Thunderbolt	No
Motherboard Model	ASUS Prime B550M-A WIFI II
WiFi Speed	2400 Mbps
USB 3.1 Support	Yes
Internal USB3.0 Header	Yes
Cooler Height	mm
M.2 Support	Yes
On-board RGB Control	ASUS Aura Sync
Memory Speed	4866 MHz
Skip Audio Test
RGB Header Type	3-Pin ARGB
Addressable RGB	Yes
Internal USB Type-C Header	No
Radiator Length	mm
Microsoft Processor List
Power Requirement (auto)	60 W
Cooler count
Max Memory Speed Supported (Non-overclocked)	3200 MHz
Max Memory Speed Supported (overclocked)	4866 MHz
CPU Power Pins (female)	8
PCI Express Power Pins (female)
Total M.2 Slots	2
Maximum NVMe M.2 ports	2
Maximum SATA M.2 ports	2
PCI-e slots
SATA ports	4
No. of front USB2.0 ports supported	4
No. of front USB3.0 ports supported	2

Graphics

Graphics Chipset

Item Details

Manufacturer	ASUS
Manufacturer Code	PRIME B550M-A WIFI II
EAN	4711081309741
UPC	195553309745
Condition	New