Prime B850-PLUS-CSM
ASUS Prime series motherboards are expertly engineered to unleash the full potential of AMD Ryzen™ 9000 series processors. The PRIME B850-PLUS-CSM motherboard provides users and PC DIY builders with a range of performance optimizations via intuitive software and firmware features. It’s designed to be Advanced AI PC-ready, offering the power and connectivity needed for demanding AI applications.

Specification

Product
Product id	999089
Brand	AsusTek
Partnr	90MB1LC0-M0EAYC
EAN/UPC code	4711387982037
Warranty (months)	36 months
Processor
Processor manufacturer	AMD
Processor socket	Socket AM5
Compatible processor series	AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series
Memory
Supported memory types	DDR5-SDRAM
Number of memory slots	4
Memory slots type	DIMM
Memory channels	Dual-channel
ECC сompatibility	ECC & non-ECC
Maximum internal memory	256 GB
Unbuffered memory	Y
Storage controllers
Supported storage drive types	HDD & SSD
Supported storage drive interfaces	M.2, SATA III
Number of HDDs supported	4
Number of storage drives supported	7
RAID levels	0, 1, 5, 10
RAID support	Y
Graphics
Parallel processing technology support	Not supported
Internal I/O
USB 2.0 connectors	2
USB 3.2 Gen 1 (3.1 Gen 1) connectors	2
Number of SATA III connectors	4
S/PDIF out connector	Y
Front panel audio connector	Y
ATX Power connector (24-pin)	Y
CPU fan connector	Y
Number of chassis fan connectors	4
Chassis intrusion connector	Y
Number of CPU fan connectors	1
EPS power connector (8-pin)	Y
Thunderbolt headers	1
12V power connector	Y
Number of water pump connectors	1
Number of COM connectors	1
RGB LED pin header	Y
Number of RGB LED pin headers	3
Rear panel I/O ports
USB 2.0 ports quantity	2
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity	3
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity	1
Ethernet LAN (RJ-45) ports	1
HDMI ports quantity	1
DisplayPorts quantity	1
Microphone in	Y
Line-in	Y
USB connector type	USB Type-A, USB Type-C
Network
Ethernet LAN	Y
Ethernet interface type	2.5 Gigabit Ethernet
Wi-Fi	N
Features
Component for	PC
Motherboard form factor	ATX
Motherboard chipset family	AMD
Motherboard chipset	AMD B850
Audio output channels	7.1 kanalen
Product colour	Multicolour
Cooling type	Passive
Windows operating systems supported	Windows 10 x64, Windows 11
Expansion slots
PCI Express x16 (Gen 4. x) slots	1
Number of M.2 (M) slots	3
1st M.2 largest key size	22110
1st M.2 highest PCI Express generation	5.0
BIOS
BIOS type	UEFI AMI
BIOS memory size	256 Mbit
Packaging data
Package width	353 mm
Package depth	273 mm
Package height	68 mm
Weight & dimensions
Width	305 mm
Depth	244 mm
Height	48 mm
Other features
Weight	1030 g
Package weight	1240 g