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ASUS ROG Mainboard ROG STRIX B850-A GAMING WIFI1/16
ASUS

ASUS ROG STRIX B850-A GAMING WIFI AMD B850 Socket AM5 ATX

Part number
1818452
MPN
90MB1J50-M0EAY0
EAN
4711387772676

ASUS ROG STRIX B850-A GAMING WIFI, AMD, Socket AM5, AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series, Socket AM5, DDR5-SDRAM, 256 GB

Memory slots typeDIMM
Processor socketSocket AM5
ChipsatzB850
Mainboard FormfaktorATX
Wi-FiYes
Processor manufacturerAMD
Compatible processor seriesAMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series
Supported processor socketsSocket AM5
All 95 specifications

Description

ASUS ROG STRIX B850-A GAMING WIFI. Processor manufacturer: AMD, Processor socket: Socket AM5, Compatible processor series: AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series. Supported memory types: DDR5-SDRAM, Maximum internal memory: 256 GB, Memory slots type: DIMM. Supported storage drive interfaces: M.2, SATA III, Supported storage drive types: HDD & SSD, RAID levels: 0, 1, 5, 10. Maximum resolution: 7680 x 4320 pixels. Ethernet interface type: 2.5 Gigabit Ethernet, Top Wi-Fi standard: Wi-Fi 7 (802.11be), Wi-Fi standards: Wi-Fi 7 (802.11be)

Documents

Specifications

Memory slots typeDIMM
Processor socketSocket AM5
ChipsatzB850
Mainboard FormfaktorATX
Wi-FiYes

Processor

Processor manufacturerAMD
Compatible processor seriesAMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series
Supported processor socketsSocket AM5

Memory

Supported memory typesDDR5-SDRAM
Number of memory slots4
Maximum internal memory256 GB
Memory channelsDual-channel
ECC сompatibilityECC & Non-ECC
Supported memory clock speed (max)8000 MHz
Unbuffered memoryYes

Storage controllers

Supported storage drive interfacesM.2, SATA III
Supported storage drive typesHDD & SSD
Number of HDDs supported2
Number of storage drives supported6
RAID supportYes
RAID levels0, 1, 5, 10

Graphics

Parallel processing technology supportNot supported
On-board graphics cardNo
Maximum resolution7680 x 4320 pixels

Internal I/O

USB 2.0 connectors2
USB 3.2 Gen 1 (3.1 Gen 1) connectors1
USB 3.2 Gen 2 (3.1 Gen 2) connectors1
Number of SATA III connectors2
Number of SATA II connectors0
Number of SATA connectors0
Front panel audio connectorYes
Front panel connectorYes
ATX Power connector (24-pin)Yes
CPU fan connectorYes
Number of CPU fan connectors2
Number of chassis fan connectors4
EPS power connector (8-pin)Yes
Number of EPS power connectors (8-pin)2
Thunderbolt headers1
Number of water pump connectors1
Number of temperature sensor headers1
RGB LED pin headerYes
Number of RGB LED pin headers3

Rear panel I/O ports

USB 2.0 ports quantity2
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity4
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity0
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity2
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity1
Ethernet LAN (RJ-45) ports1
VGA (D-Sub) ports quantity0
HDMI ports quantity1
DVI-D ports quantity0
USB 3.2 Gen 2x2 Type-C ports quantity1
HDMI version2.1
DisplayPorts quantity1
DisplayPort version1.4
Headphone outputs1
Line-inYes
S/PDIF out portYes
Digital audio optical out1
WiFi-AP antenna jack2

Network

Ethernet LANYes
Ethernet interface type2.5 Gigabit Ethernet
Top Wi-Fi standardWi-Fi 7 (802.11be)
Wi-Fi standardsWi-Fi 7 (802.11be)
BluetoothYes
Bluetooth version5.4

Features

Component forPC
Motherboard form factorATX
Motherboard chipset familyAMD
Motherboard chipsetAMD B850
Audio output channels7.1 channels
Audio chipRealtek ALC4080
Product colourWhite
Power source typeATX
Windows operating systems supportedWindows 11

Expansion slots

PCI Express x16 (Gen 4.x) slots1
Number of M.2 (M) slots4
1st M.2 largest key size2280
1st M.2 highest PCI Express generation5.0
2nd M.2 largest key size22110
2nd M.2 highest PCI Express generation4.0
3rd M.2 largest key size2280
3rd M.2 highest PCI Express generation4.0
4th M.2 largest key size2280
4th M.2 highest PCI Express generation4.0

BIOS

BIOS typeUEFI AMI
BIOS memory size256 Mbit
Clear CMOS buttonYes

Weight & dimensions

Width305 mm
Depth244 mm

Other features

Audio output<strong>ROG SupremeFX 7.1 Surround Sound High Definition Audio CODEC ALC4080*</strong><br /> - Impedance sense for front and rear headphone outputs<br /> - Supports: Jack-detection, Multi-streaming, Front Panel MIC Jack-retasking<br /> - High quality 120 dB SNR stereo playback output and 110 dB SNR recording input<br /> - Supports up to 32-Bit/384 kHz playback on front panel<br /><strong>Audio Features <br /></strong>- SupremeFX Shielding Technology<br />- Savitech SV3H712 AMP<br />- Rear optical S/PDIF out port<br />- Premium audio capacitors<br />- Audio cover<br />* A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output. <br />** The LINE OUT port on the rear panel does not support spatial audio. If you wish to use spatial audio, make sure to connect your audio output device to the audio jack on the front panel of your chassis or use a USB interface audio device.
Special features<strong>Total supports 4 x M.2 slots and 2 x SATA 6Gb/s ports<br /><br />AMD Ryzen™ 7000 & 9000 Series Desktop Processors<br /></strong>M.2_1 (Key M), type 2242/2260/2280 (supports PCIe 5.0x4 mode)<br />M.2_2 (Key M), type 2280/22110 (supports PCIe 4.0 x4 mode)<br /><strong>AMD Ryzen™ 8000 Series Desktop Processors<br /></strong>M.2_1 (Key M), type 2242/2260/2280 (supports PCIe 4.0x4 mode)<br />M.2_2 (Key M), type 2280/22110 (supports PCIe 4.0 x4/x2 mode)*<br /><br /><strong>AMD B850 Chipset<br /></strong>M.2_3 (Key M), type 2280 (supports PCIe 4.0 x4)**<br />M.2_4 (Key M), type 2280 (supports PCIe 4.0 x4)<br />2 x SATA 6Gb/s ports<br />* Specifications vary by CPU types.<br />** M.2_3 slot shares bandwidth with PCIEX16(G4). When PCIEX16(G4) slot is operating, M.2_3 will be disabled.<br /><strong><br />AMD RAIDXpert2 Technology<br /></strong>Ryzen™ 9000 Series Processors: RAID 0/1/5/10<br />Ryzen™ 8000 Series Processors: RAID 0/1<br />Ryzen™ 7000 Series Processors: RAID 0/1/10
Other features4 x DIMM slots, max. 256GB, DDR5<br />Supports up to 8000+MT/s (OC) with Ryzen™ 9000 & 8000 & 7000 Series Processors<br /> ECC and Non-ECC, Un-buffered DIMM<br />Dual channel memory architecture<br />Supports AMD Extended Profiles for Overclocking (EXPO<sup>™</sup>)<br />ASUS Enhanced Memory Profile (AEMP)<br />* Supported memory types, data rate (speed), and number of DRAM modules vary depending on the CPU and memory configuration, for more information please refer to CPU/Memory Support list under the Support tab of product information site or visit https://www.asus.com/support/download-center/.<br />** Non-ECC, un-buffered DDR5 memory supports On-Die ECC function.
Graphics output1 x DisplayPort*<br />1 x HDMI™ port**<br />- Graphics specifications may vary between CPU types. Please refer to AMD CPU specifications.<br />* Supports max. 8K@30Hz as specified in DisplayPort 1.4<br />** Supports 4K@60Hz as specified in HDMI 2.1<br />*** VGA resolution support depends on processors' or graphic cards' resolution.
Weight2.27 kg

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