ASUS PRO WS B850M-ACE SE AMD B850 Socket AM5 micro ATX Motherboard

The ASUS PRO WS B850M-ACE SE provides the foundation for your build — socket, chipset and expansion details are in the spec table below.

The Pro WS B850M-ACE SE empowers workstation users of all levels by maximizing the performance of the latest AMD Ryzen™ processors via 8+2+1 team power stages, DDR5 slots, PCIe® 5.0 and lightning-fast connectivity including a front USB 20Gbps Type-C® connector, plus 10Gb and 2.5Gb Ethernet.
This workstation motherboard is an ideal choice for content creation, AI and deep learning, and IT management.

Specifications

Internal I/O
Number of M.2 (M) slots	2
USB 3.2 Gen 2 (3.1 Gen 2) connectors	1
Front panel connector	Yes
12V power connector	Yes
Supported storage drive interfaces	M.2, SATA III
USB 2.0 connectors	3
USB 3.2 Gen 1 (3.1 Gen 1) connectors	1
TPM connector	Yes
Peripheral (Molex) power connectors (4-pin)	1
Number of SATA III connectors	4
Number of COM connectors	1
Number of chassis fan connectors	3
Front panel audio connector	Yes
EPS power connector (8-pin)	Yes
CPU fan connector	Yes
Chassis intrusion connector	Yes
ATX Power connector (24-pin)	Yes
Number of CPU fan connectors	1
Number of EPS power connectors (8-pin)	1
Number of water pump connectors	1
Technical details
Motherboard chipset family	AMD
Motherboard chipset	AMD B850
Supported processor sockets	Socket AM5
Parallel processing technology support	Not supported
HDMI version	2.1
Cooling type	Passive
Motherboard form factor	micro ATX
Component for	PC
Audio
Audio output channels	7.1 channels
Performance
Number of HDDs supported	4
Supported storage drive types	HDD & SSD
Windows operating systems supported	Windows 10 x64, Windows 11
RAID levels	0, 1, 5, 10
Processor
Processor manufacturer	AMD
Compatible processor series	AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series
Processor socket	Socket AM5
Memory
Number of memory slots	4
Memory slots type	DIMM
Supported memory types	DDR5-SDRAM
Memory channels	Dual-channel
Maximum internal memory	256 GB
Unbuffered memory	Yes
Supported memory clock speed (max)	8000 MHz
ECC ?ompatibility	ECC & Non-ECC
Maximum internal memory per slot	64 GB
Storage controllers
Number of storage drives supported	6
RAID support	Yes
Graphics
Maximum resolution	7680 x 4320 pixels
Rear panel I/O ports
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	3
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity	2
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity	0
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity	0
DisplayPort version	1.4
USB 2.0 ports quantity	2
VGA (D-Sub) ports quantity	1
Headphone outputs	1
HDMI ports quantity	1
Ethernet LAN (RJ-45) ports	3
DVI-D ports quantity	0
DisplayPorts quantity	1
Line-in	Yes
Network
Ethernet LAN	Yes
Wi-Fi	No
Ethernet interface type	2.5 Gigabit Ethernet, Gigabit Ethernet, 10 Gigabit Ethernet
Top Wi-Fi standard	Not available
Features
Power source type	ATX
Product colour	Black
Expansion slots
PCI Express x16 (Gen 4.x) slots	1
PCI Express x16 (Gen 5.x) slots	1
1st M.2 largest key size	2280
1st M.2 highest PCI Express generation	5.0
2nd M.2 largest key size	2280
2nd M.2 highest PCI Express generation	5.0
BIOS
BIOS type	UEFI AMI
BIOS memory size	512 Mbit
Clear CMOS button	Yes
Packaging data
Package width	280 mm
Package depth	265 mm
Package height	71 mm
Weight & dimensions
Height	50 mm
Weight	1.03 kg
Width	244 mm
Depth	244 mm
Packaging content
Cables included	SATA
Screws included	Yes

Downloads

• Datasheet (PDF)