ASUS ROG Strix B850-A Gaming WiFi Motherboard

ASUS ROG Strix B850-A Gaming WiFi AM5 B850 14+2+2 Power Stages DDR5 AEMP 2.5G LAN WiFi 7 4X M.2 PCIe 5.0 USB 20Gbps Type-C ATX

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Ready for Advanced AI PCs: Designed for the future of AI computing, with the power and connectivity needed for demanding AI applications
AMD AM5 Socket: Ready for AMD Ryzen 9000, 8000 and 7000 series desktop processors
Intelligent Control: ASUS AI Advisor, AI Networking II and AEMP to simplify setup and improve performance
Robust Power Solution: 14+2+2 power solution rated for 80A per stage with an 8+8-pin ProCool power connector, high-quality alloy chokes, and durable capacitors to support multi-core processors
Optimized Thermal Design: Massive heatsinks bridged to the VRMs with high-conductivity thermal pads and an integrated I/O cover

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Specifications Overview

Model	ROG STRIX B850-A GAMING WIFI 90MB1J50-M0AAY0 90MB1J50-M0EAY0
Release Date	January 2025 * First availability for purchase, it may not correspond to the actual market launch date.
Socket	AM5
Form factor	ATX
Chipset	AMD B850
Supported Memory	DDR5 5600Mhz 5800Mhz 6000Mhz 6200Mhz 6400Mhz 6600Mhz 6800Mhz 7000Mhz 7200Mhz 7600Mhz 7800Mhz 8000Mhz View compatible RAM ► * High clock speeds may require enabling the XMP profile in the motherboard BIOS ** RAM support may also depend on the CPU memory controller
ECC RAM Support	No
Audio Chipset	Realtek ALC4080
Audio Channels	ROG SupremeFX 7.1 Surround Sound High Definition Audio CODEC ALC4080
Max LAN Speed	2.5Gbps
SLI Support	No
CrossFire Support	No
RAID Support	Yes
Back Connect	No
Back I/O Ports	1 x USB 20Gbps port (1 x USB Type-C) 3 x USB 10Gbps ports (2 x Type-A + 1 x USB Type-C) 4 x USB 5Gbps ports (4 x Type-A) 2 x USB 2.0 ports (2 x Type-A) 1 x DisplayPort 1 x HDMI port 1 x Wi-Fi module 1 x Intel 2.5Gb Ethernet port 2 x Audio jacks 1 x Optical S/PDIF out port 1 x BIOS FlashBack button 1 x Clear CMOS button
Wireless LAN	Yes
Wi-Fi Generation	7
PCI-Express x16 Slots	2
PCI-Express x4 Slots	0
PCI-Express x1 Slots	0
SATA 6 Gbps Ports	2
SATA Express Ports	0
M.2 Ports	4
M.2 Devices support	2242 / 2260 / 2280 - M Key 2280 / 22110 - M Key 2280 - M Key 2280 - M Key
RAM Slots	4
Maximum Supported RAM	192 GB
Onboard USB 2.0	2
Onboard USB 3.2 Gen 1	1
Onboard USB 3.2 Gen 2	1
Onboard USB 3.2 Gen 2x2	0

	Old Name	Current Name	Branding	Data Speed	Port
USB 2.0	USB 2.0	USB 2.0	Hi-Speed USB	480 Mbit/s	diverse
USB 3.0	USB 3.1 Gen 1	USB 3.2 Gen 1x1	SuperSpeed USB	5 Gbit/s	diverse
USB 3.1	USB 3.1 Gen 2	USB 3.2 Gen 2x1	SuperSpeed USB 10Gbps	10 Gbit/s	diverse
USB 3.2	USB 3.2 Gen 2x2	USB 4.0 Gen 2x2	USB4 20Gbps	20 Gbit/s	only USB-C
USB4	USB 4.0 Gen 3x2	USB4 1.0	USB4 40Gbps	40 Gbit/s	only USB-C
USB4v2	USB 4.0 Gen 4	USB4 2.0	USB4 80Gbps	80-120 Gbit/s	only USB-C