BIOS
BIOS type	UEFI AMI
BIOS memory size	256 Mbit
Expansion slots
PCI Express x16 (Gen 4.x) slots	1
Number of M.2 (M) slots	2
Features
Motherboard chipset	AMD B550
Component for	PC
Motherboard form factor	micro ATX
Motherboard chipset family	AMD
Internal I/O
USB 2.0 connectors	2
USB 3.2 Gen 1 (3.1 Gen 1) connectors	1
Number of SATA connectors	4
Logistics data
Harmonized System (HS) code	84733020
Memory
Supported memory types	DDR4-SDRAM
Number of memory slots	4
Memory slots type	DIMM
Supported memory clock speeds	2133,2400,2666,2800,3000,3200,3333,3466,3600,3733,3866,4000,4133,4266,4400,4600 MHz
Maximum internal memory	128 GB
Network
Ethernet interface type	Gigabit Ethernet
LAN controller	Realtek 8111H
Top Wi-Fi standard	Not available
Bluetooth version	5.1
Ethernet LAN
Wi-Fi
Bluetooth
Processor
Processor manufacturer	AMD
Processor socket	Socket AM4
Compatible processor series	AMD Ryzen 3000 Series
Rear panel I/O ports
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	4
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity	2
Ethernet LAN (RJ-45) ports	1
PS/2 ports quantity	1
HDMI ports quantity	1
DVI-D ports quantity	1
Storage controllers
Supported storage drive interfaces	M.2, SATA
Number of storage drives supported	6
RAID support

AMD AM4 socket for 3rd Gen AMD Ryzen Processors
AMD B550 Chipset
4x DDR4 DIMM sockets, max. 128 GB
Graphics I/O: 1x D-Sub, 1x DVI-D (Single-Link), 1x HDMI 2.1 (4K@60Hz)
Supports up to 3 Displays simultaneously
1x PCIe 3.0/4.0* x16 (x16 mode), 2x PCIe 3.0 x1
*) PCIe 4.0 requires AMD Ryzen CPU with non-integrated Graphics
2x M.2 (1x 2242/2260/2280/22110 + 1x 2242/2260/2280) PCIe/NVMe or SATA mode
4x SATA 6Gb/s ports
LAN: Realtek RTL8111H 1Gb Ethernet, 1x (RJ45) port WoL and PXE
Realtek ALC887/897 7.1 Surround Sound HD Audio CODEC
USB-I/O rear: 2x USB 3.2 Gen2 port(s), 4x USB 3.2 Gen1 port(s)
1x PS/2, 3x Audio jack(s), option: 1x COM (serial)