ASUS

ASUS Prime B850-Plus WiFi AM5 ATX Motherboard for AMD Ryzen

Processor manufacturerAMD
Maximum internal memory256 GB
Number of HDDs supported4
RAID levels0/1/10/5
Top Wi-Fi standardWi-Fi 6E (802.11ax)
Audio output channels7.1

The ASUS Prime B850-Plus WiFi is an ATX motherboard for AMD Socket AM5 processors, built on the AMD B850 chipset and designed to support AMD Ryzen 9000 series CPUs. With four DDR5 memory slots, PCIe 5.0 support, and built-in WiFi, it gives PC builders a solid, feature-rich foundation for a high-performance desktop build.

Description

Expand, Connect, and Build Without Compromise

AMD B850 chipset with Socket AM5 — fully compatible with AMD Ryzen 9000 series processors
4x DDR5 memory slots — ready for fast, high-capacity RAM configurations
PCIe 5.0 x16 slot alongside PCIe 4.0 and two PCIe 3.0 x16 slots for flexible GPU and expansion card options
3x M.2 slots for NVMe SSDs, enabling quick multi-drive storage setups
Built-in WiFi and 2x USB-C ports alongside 5x USB 3.2 Type-A for comprehensive wired and wireless connectivity

A strong fit for enthusiast PC builders, content creators, and AI workstation users who want an ATX AMD motherboard with modern connectivity, ample storage expansion, and DDR5 memory support.

Specifications

General

Brand	ASUS
Product colour	Multicolour
BIOS type	UEFI AMI
Component for	PC
BIOS memory size	256
Unbuffered memory	Yes
ECC сompatibility	ECC & Non-ECC
Number of memory slots	4
Motherboard form factor	ATX
Number of M.2 (M) slots	3
PCI Express x16 (Gen 3.x) slots	2
PCI Express x16 (Gen 4.x) slots	1
EAN	4711387931509

Processor

Processor manufacturer	AMD
Motherboard chipset	AMD B850
Processor socket	Socket AM5
CPU fan connector	Yes
Motherboard chipset family	AMD
Compatible processor series	AMD Ryzen 7000 Series/AMD Ryzen 8000 Series/AMD Ryzen 9000 Series
Number of CPU fan connectors	1

Memory

Maximum internal memory	256 GB
Memory channels	Dual-channel
Memory slots type	DIMM

Storage

Number of HDDs supported	4
Supported storage drive types	HDD & SSD
Number of storage drives supported	7
Supported storage drive interfaces	M.2, SATA III

Graphics

On-board graphics card	No

Audio

Microphone in	Yes
Audio output channels	7.1
Front panel audio connector	Yes

Ports

HDMI ports quantity	1
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	Yes
Ethernet LAN (RJ-45) ports	1
TPM connector	Yes
USB 2.0 connectors	3
12V power connector	Yes
Thunderbolt headers	1
S/PDIF out connector	Yes
DisplayPorts quantity	1
Ethernet interface type	2.5 Gigabit Ethernet
Number of COM connectors	1
Chassis intrusion connector	Yes
EPS power connector (8-pin)	Yes
ATX Power connector (24-pin)	Yes
Number of SATA III connectors	4
Number of chassis fan connectors	4
USB 3.2 Gen 1 (3.1 Gen 1) connectors	2