ASUS Prime B550M-A/CSM AMD B550 Socket AM4 micro ATX

ASUS Prime B550M-A/CSM. Processor manufacturer: AMD, Processor socket: Socket AM4, Compatible processor series: 3rd Generation AMD Ryzen™ 3, 3rd Generation AMD Ryzen 5. Supported memory types: DDR4-SDRAM, Maximum internal memory: 128 GB, Memory slots type: DIMM. Supported storage drive interfaces: M.2, SATA III. Ethernet interface type: Gigabit Ethernet, LAN controller: Realtek RTL8111H. Component for: PC, Motherboard form factor: micro ATX, Motherboard chipset family: AMD

Processor manufacturer	AMD
Processor socket	Socket AM4
Compatible processor series	3rd Generation AMD Ryzen™ 3, 3rd Generation AMD Ryzen 5
Supported memory types	DDR4-SDRAM
Number of memory slots	4
Maximum internal memory	128 GB
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
Unbuffered memory	Yes
Supported storage drive interfaces	M.2, SATA III
USB 2.0 connectors	2
USB 3.2 Gen 1 (3.1 Gen 1) connectors	1
Number of SATA III connectors	4
Front panel audio connector	Yes
ATX Power connector (24-pin)	Yes
CPU fan connector	Yes
Number of chassis fan connectors	2
EPS power connector (8-pin)	Yes
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
VGA (D-Sub) ports quantity	1
HDMI ports quantity	1
DVI-D ports quantity	1
PS/2 ports quantity	1
Headphone outputs	1
Microphone in	Yes
Wi-Fi	No
Ethernet LAN	Yes
Ethernet interface type	Gigabit Ethernet
LAN controller	Realtek RTL8111H
Component for	PC
Motherboard form factor	micro ATX
Motherboard chipset family	AMD
Motherboard chipset	AMD B550
Audio output channels	7.1 channels
Audio chip	Realtek ALC887
Windows operating systems supported	Windows 10 x64
PCI Express x1 (Gen 3.x) slots	2
PCI Express x16 (Gen 4.x) slots	1
BIOS type	UEFI AMI
BIOS memory size	256 Mbit
Clear CMOS jumper	Yes
Harmonized System (HS) code	84733020
Width	9.61" (244 mm)
Depth	9.61" (244 mm)
Height	2.01" (51 mm)
Weight	29.8 oz (845 g)