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ASUS ROG STRIX B850-A GAMING WIFI R2 AMD AM5 B850 ATX motherboard with 14+2+1 power stages, DDR5 support with AEMP, WiFi 7, 4x M.2, PCIe 5.0 x16, USB 20Gbps Type-C, ASUS AI Advisor, AI Networking II
- AMD AM5 Socket: Ready for AMD Ryzen 9000, 8000 and 7000 series desktop processors
- Ultrafast Connectivity: PCIe 5.0, two M.2 slots, Realtek 2.5Gb Ethernet, Wi-Fi 7, rear USB 5Gbps Type-A, front USB 5Gbps support
- Comprehensive Cooling: VRM heatsink, PCH heatsink, hybrid fan headers and Fan Xpert 2+
- Aura Sync RGB Lighting: Onboard Addressable Gen 2 headers for RGB LED strips, easily synced with Aura Sync-capable hardware
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Specs
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Learn more about the ASUS ROG STRIX B850-A GAMING WIFI R2
| Brand | ASUS |
|---|---|
| Model | ROG STRIX B850-A GAMING WIFI R2 |
| CPU Socket Type | AM5 |
|---|---|
| CPU Type | Ryzen 7000 Series / Ryzen 8000 Series / Ryzen 9000 Series |
| Chipset | AMD B850 |
|---|
| Number of Memory Slots | 4x288pin (DDR5) |
|---|---|
| Memory Standard | Supports up to 8000+MT/s(OC) |
| Maximum Memory Supported | 256GB |
| Channel Supported | Dual Channel |
| ECC Supported | Yes |
| Buffer Supported | Un-buffered |
| Memory Feature | Dual channel memory architecture Supports AMD Extended Profiles for Overclocking (EXPO) ASUS Enhanced Memory Profile (AEMP) ** Non-ECC, un-buffered DDR5 memory supports On-Die ECC function. |
| PCI Express 5.0 x16 | AMD Ryzen 9000 & 7000 Series Desktop Processors 1 x PCIe 5.0 x16 slot with Q-Release Slim AMD Ryzen 8000 Series Desktop Processors 1 x PCIe 5.0 x16 slot with Q-Rlease Slim (supports PCIe 4.0 x8/x4 mode)** |
|---|---|
| PCI Express 4.0 x16 | AMD B850 Chipset 1 x PCIe 4.0 x16 slot (supports x4 mode)* * PCIEX16(G4) slot (supports x4 mode) from AMD B850 Chipset shares bandwidth with M.2_3 |
| Serial ATA (SATA) | 2 x SATA 6Gb/s |
|---|---|
| M.2 | AMD Ryzen 7000 & 9000 Series Desktop Processors M.2_1 (Key M), type 2242/2260/2280 (supports PCIe 5.0x4 mode) M.2_2 (Key M), type 2280/22110 (supports PCIe 4.0 x4 mode) AMD Ryzen 8000 Series Desktop Processors M.2_1 (Key M), type 2242/2260/2280 (supports PCIe 4.0x4 mode) M.2_2 (Key M), type 2280/22110 (supports PCIe 4.0 x4/x2 mode)* AMD B850 Chipset M.2_3 (Key M), type 2280 (supports PCIe 4.0 x4)** M.2_4 (Key M), type 2280 (supports PCIe 4.0 x4) ** M.2_3 slot shares bandwidth with PCIEX16(G4). When PCIEX16(G4) slot is operating, M.2_3 will be disabled. |
| SATA RAID | AMD RAIDXpert2 Technology Ryzen 9000 Series Processors: RAID 0/1/5/10 Ryzen 8000 Series Processors: RAID 0/1 Ryzen 7000 Series Processors: RAID 0/1/10 |
| Audio Channels | ROG SupremeFX 7.1 Surround Sound High Definition Audio CODEC ALC4080* - Impedance sense for front and rear headphone outputs - Supports: Jack-detection, Multi-streaming, Front Panel MIC Jack-retasking - High quality 120 dB SNR stereo playback output and 110 dB SNR recording input - Supports up to 32-Bit/384 kHz playback on front panel Audio Features - SupremeFX Shielding Technology - Savitech SV3H712 AMP - Rear optical S/PDIF out port - Premium audio capacitors - Audio cover * A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output. ** 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. |
|---|
| Max LAN Speed | 2.5Gbps |
|---|---|
| Wireless LAN | Wi-Fi 802.11 be |
| Bluetooth | Bluetooth 5.4 |
| 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 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 |
|---|
| Onboard USB | 1 x USB 10Gbps connector (supports USB Type-C) 1 x USB 5Gbps header supports 2 additional USB 5Gbps ports 2 x USB 2.0 headers support 4 additional USB 2.0 ports |
|---|---|
| Other Connectors | Fan and Cooling Related 1 x 4-pin CPU Fan header 1 x 4-pin CPU OPT Fan header 1 x 4-pin AIO Pump header 4 x 4-pin Chassis Fan headers Miscellaneous 3 x Addressable Gen 2 headers 1 x CPU Over voltage jumper 1 x Front Panel Audio header (F_AUDIO) 1 x Power button 1 x 10-1 pin Front System Panel header 1 x Thermal Sensor header 1 x Thunderbolt (USB4) header |
| Form Factor | ATX |
|---|---|
| Dimensions (W x L) | 12.0" x 9.6" |
| Power Pin | 1 x 24-pin Main Power connector 2 x 8-pin +12V CPU Power connector |
| BIOS Feature | 256 Mb Flash ROM, UEFI AMI BIOS |
|---|---|
| Software | ROG Exclusive Software - ROG CPU-Z - Dolby Atmos ASUS Exclusive Software Armoury Crate - AIDA64 Extreme (60 days free trial) - Aura Creator - Aura Sync - GameFirst - HWiNFO - Fan Xpert 4 ASUS DriverHub ASUS GlideX TurboV Core Adobe Creative Cloud (Free Trial) Norton 360 for Gamers (60 Days Free Trial) WinRAR (40 Days Free Trial) UEFI BIOS ASUS EZ DIY - ASUS CrashFree BIOS 3 - ASUS EZ Flash 3 - ASUS UEFI BIOS EZ Mode - ASUS MyHotkey |
| Features | Extreme Engine Digi+ - 5K Black metallic capacitors ASUS Q-Design - M.2 Q-Latch - M.2 Q-Release - PCIe Slot Q-Release Slim (with PCIe SafeSlot) - Q-Antenna - Q-Dashboard - Q-DIMM - Q-LED (CPU [red], DRAM [yellow], VGA [white], Boot Device [yellow green]) - Q-Slot ASUS Thermal Solution - M.2 heatsink ASUS EZ DIY - BIOS FlashBack button - BIOS FlashBack LED - Clear CMOS button - ProCool - Pre-mounted I/O shield - SafeSlot - SafeDIMM Aura Sync - Addressable Gen 2 headers |
|---|
| Package Contents | Cables 2 x SATA 6Gb/s cables Miscellaneous 1 x ASUS WiFi Q-Antenna 1 x Cable ties package 1 x M.2 Q-Latch package 1 x ROG key chain 1 x ROG Strix stickers 4 x M.2 rubbers Documentation 1 x Quick start guide |
|---|
| Date First Available | May 06, 2025 |
|---|
Warranty & Returns
Warranty, Returns, And Additional Information
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- Return for refund within: 30 days
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- *Subject to applicable law
Warranty Notice:
This product does not include manufacturer warranty when purchased or used outside of its designated sales region. By purchasing internationally, you acknowledge that warranty support from the manufacturer will not be available.
Manufacturer Contact Info
- Manufacturer Product Page
- Manufacturer Website
- Support Phone: 1-888-678-3688
- Support Website
- View other products from ASUS
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