ASUS PRO B550M-C /CSM AMD B550 Socket AM4 micro ATX

Processor
Maximum number of SMP processors: 1
Processor socket: Socket AM4
Processor manufacturer: AMD
Compatible processor series: AMD Ryzen 3000 Series, AMD Athlon

Graphics
Parallel processing technology support: Not supported

Features
Windows operating systems supported: Windows 10 x64
Audio output channels: 7.1 channels
Audio chip: Realtek ALC887 / Realtek ALC897
Motherboard chipset family: AMD
Component for: PC
Motherboard chipset: AMD B550
Motherboard form factor: micro ATX

Memory
Supported memory clock speeds: 3866, 4600, 3333, 4466, 2400, 2800, 3600, 4133, 4000, 4800, 3733, 4400, 3200 MHz, 2666, 4266, 3000, 3466, 2133
Number of memory slots: 4
Maximum internal memory: 128 GB
Memory channels: Dual-channel
Unbuffered memory: Yes
Supported memory types: DDR4-SDRAM
Memory slots type: DIMM
ECC сompatibility: ECC

Weight & dimensions
Height: 51 mm
Width: 244 mm
Depth: 244 mm

Network
Wake-on-LAN ready: Yes
Ethernet LAN: Yes
Ethernet interface type: Gigabit Ethernet
LAN controller: Realtek RTL8111H

Internal I/O
Thunderbolt headers: 1
Front panel audio connector: Yes
Number of SATA III connectors: 4
Number of chassis fan connectors: 2
CPU fan connector: Yes
Number of COM connectors: 1
Chassis intrusion connector: Yes
ATX Power connector (24-pin): Yes
Number of EATX power connectors: 1
USB 2.0 connectors: 2
USB 3.2 Gen 1 (3.1 Gen 1) connectors: 2
12V power connector: Yes

BIOS
BIOS type: UEFI AMI
BIOS memory size: 256 Mbit
Clear CMOS jumper: Yes

Packaging content
Cables included: SATA
Drivers included: Yes

Storage controllers
Supported storage drive interfaces: SATA III
Supported storage drive types: HDD & SSD
RAID levels: 10, 1, 0

Rear panel I/O ports
DisplayPorts quantity: 2
Ethernet LAN (RJ-45) ports: 1
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity: 1
HDMI ports quantity: 1
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity: 2
PS/2 ports quantity: 2
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity: 1
HDMI version: 2.1
USB 2.0 ports quantity: 2

Expansion slots
Number of M.2 (M) slots: 2
PCI slots: 1
PCI Express x16 (Gen 4.x) slots: 1
PCI Express x4 slots: 1

Other features
Weight: 845 g

Logistics data
Harmonized System (HS) code: 84733020