ASUS PRIME B550M-A Socket AM4 micro ATX AMD B550

Processor
Compatible processor series: 3rd Generation AMD Ryzen™ 7, 3rd Generation AMD Ryzen 5, 3rd Generation AMD Ryzen™ 3, 3rd Generation AMD Ryzen™ 9
Processor socket: Socket AM4
Processor manufacturer: AMD

Features
Motherboard chipset: AMD B550
Motherboard form factor: micro ATX
Motherboard chipset family: AMD

Memory
Memory slots type: DIMM
Supported memory types: DDR4-SDRAM
Supported memory clock speeds: 3200 MHz, 2666, 4266, 3000, 4600, 2400, 2800, 3333, 4133 MHz, 4000, 3733, 4400, 2133, 3466, 3600, 3866
Number of memory slots: 4
Maximum internal memory: 128 GB

Network
Bluetooth version: 5.1
Ethernet LAN: Yes
LAN controller: Realtek 8111H
Bluetooth: Yes

Internal I/O
USB 2.0 connectors: 2
Number of SATA connectors: 4
USB 3.2 Gen 1 (3.1 Gen 1) connectors: 1

BIOS
BIOS type: UEFI AMI

Storage controllers
Supported storage drive interfaces: M.2, Serial ATA

Rear panel I/O ports
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity: 2
Ethernet LAN (RJ-45) ports: 1
DVI-D ports quantity: 1
PS/2 ports quantity: 1
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity: 4
HDMI ports quantity: 1