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Designed for those seeking to get the most out of their build, ROG Strix B550 Gaming series motherboards offer a feature-set usually found in the higher-end ROG Strix X570 Gaming series, including the latest PCIe® 4.0 connectivity. Offering robust power delivery and effective cooling, ROG Strix B550-A Gaming is well-equipped to handle 3rd Gen AMD Ryzen™ CPUs. As an added bonus, outstanding performance is complemented by a stunning silver-and-white finish and cyberpunk-inspired aesthetics that present a standout look.
Built for Performance Gaming
- ProCool Power Connector
- AMD Socket AM4 for 3rd Gen AMD Ryzen™ Processors
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Multi-GPU CFX Support
- 1 x PCIe 4.0 x16 SafeSlot (x16) [CPU]
- 1 x PCIe 3.0 x16 slot (x4) [CHIPSET]
- 3 x PCIe 3.0 x1 slots [CHIPSET]
- 12+2 Power Stages
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DDR4, 4 x DIMM
- ASUS OptiMem II
- Dual Channel
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2 x M.2 Sockets
- 1 x M.2 2242-22110 supports PCIe 4.0 x4 & SATA modes
- 1 x M.2 2242-22110 supports PCIe 3.0 x4 & SATA modes
Comprehensive Cooling
- VRM Heatsink
- AIO Pump Header
- Dual M.2 Heatsinks
- Chipset Heatsink
- Multiple 4-pin PWM Fan Headers
Total Gaming Immersion
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SupremeFX S1220A CODEC
- Impedance sense
- High quality output and input
- SupremeFX shielding
- Dual OP amplifiers
DTS® Sound Unbound
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1 x 3-pin Addressable Gen 2 RGB Header
2 x 4-pin AURA RGB Headers
Full Connectivity
- BIOS FlashBack™ Button
- 2 x USB 2.0 Ports
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2 x USB 3.2 Gen 2 Ports
- 1 x Type-A + 1 x USB Type-C®
- 4 x USB 3.2 Gen 1 Ports
- 1 x Intel® I225-V 2.5Gb Ethernet
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1 x DisplayPort 1.2
1 x HDMI™ 2.1 (4K@60Hz)
- Optical S/PDIF Out
- 5 x Audio Jacks
- 2 x USB 3.2 Gen 1 Ports
- 6 x SATA 6Gb/s
- Thunderbolt Header
ROG Strix B550-A Gaming is PCIe® 4.0-ready and provides the latest connectivity options for supersmooth networking and blisteringly fast file transfers. Audio enhancements give you a massive advantage, allowing you to pick up on the subtlest of cues for a completely immersive gaming experience.
ROG Strix B550-A Gaming features two M.2 slots, one of which supports the latest PCIe 4.0 standard to provide maximum storage flexibility and the fastest data speeds available via the 3rd Gen AMD Ryzen platform. Both M.2 slots support up to the type 22110 socket and NVM Express® RAID for a performance boost.
Bandwidth [MB/s]
8066
PCIe 3.0 x 4
4032
*The actual transmission speed will be lower than the theoretical maximum speed.
Built-in ROG SupremeFX audio technology ensures pristine audio for ROG Strix B550-A Gaming. Along with ensuring a flat frequency response for a neutral, detailed sound signature, it offers two front-panel outputs driven by op amps that deliver high-quality audio to gaming headsets.
113dB
Standard ALC1220
108dB
AI noise-canceling microphone software is exclusively featured on ROG Strix motherboards and supports 3.5 mm, USB, or Bluetooth headsets. The utility leverages a massive deep-learning database to preserve the sound of your voice while eliminating distracting keyboard clatter, mouse clicks, and other forms of environmental noise. And it only places a slight load on the CPU, ensuring minimal impact on gaming performance.
*Actual performance varies by configuration
Sonic Studio supports HRTF-based (head-related transfer function*) virtual surround for VR headsets, casting an immersive aural landscape that draws you deeper into the action. The intuitive Sonic Studio interface also offers a range of EQ options and one-click presets, allowing you to tailor acoustics to suit personal preferences or the characteristics of your headset.
ROG Strix B550 series motherboards are pre-loaded with the DTS® Sound Unbound™ app that envelops you in audio as never before, conjuring whole new levels of immersion for extraordinary gaming and entertainment experiences. By leveraging Windows Sonic spatial technology, DTS Sound Unbound delivers audio in a virtual 3D space — putting you right in the middle of the soundscape, where you can sense the location and direction of every gunshot, footstep or other sound in your virtual environment.
* DTS Sound Unbound requires in-game support. Check with developers for supported titles.
Discrete left and right audio channels enable headphone or two-speaker setup.
Audio is split and served over multiple speaker channels – e.g., 5.1 or 7.1 – to create an enveloping experience on a single, logical plane.
A virtual audio ‘sphere' effect creates astonishing 360° immersion — with you at the center, where sounds seem to travel in all directions.
ROG Strix B550-A Gaming provides robust power delivery to fuel Ryzen's cores, comprehensive cooling, and support for faster memory — so it has everything you need to load up your build with high-performance components for playing in the big leagues.
ROG Strix B550 series features the most comprehensive cooling options ever, configurable via Fan Xpert 4 or the UEFI BIOS.
To provide AMD's latest CPUs unfettered access to memory bandwidth, motherboard trace routing has been reimagined with the ROG Strix B550-A Gaming. Integrated OptiMem II technology carefully maps memory signal pathways across PCB layers to reduce vias, and it also adds shielding zones that significantly reduce crosstalk. To further enhance overclocking headroom for fully stacked memory configurations, a highly customized Daisy Chain layout delivers time-aligned signaling.
P2P:22.5m
Reference Design
P2P:55.9m
The cyberpunk-inspired aesthetics of ROG Strix B550-A Gaming are accentuated by the bold slashes and cybertext. By pairing your rig with other products from the diverse ROG ecosystem, you can create a fully customized gaming setup that reflects your personal style.
Finished in stunning white and silver, and featuring the redesigned ROG logo and recessed cybertext markings on its I/O shroud, ROG Strix B550-A Gaming is an eye-catcher. These new design touches move ROG Strix boldly towards the future, while clearly reflecting its gaming roots.
ROG Strix motherboards undergo an extensive certification program to ensure the very best compatibility with the widest range of components and devices. For a smooth build process, refer to our list of guaranteed-compatible components. To help with memory upgrades, the list also includes a dedicated Qualified Vendor list (QVL).
ROG-exclusive software utilities deliver intuitive audio tuning and gaming enhancements that allow you to configure your gaming build the way you want.
The renowned ROG UEFI (BIOS) provides everything you need to configure, tweak, and tune your rig. It offers intelligently simplified options for newcomers to PC DIY, as well as comprehensive features for seasoned veterans.
When you're ready for a deeper dive into the configuration of your system, delve into the UEFI's Advanced mode and take complete control. Each section is intuitively organized, and a built-in search feature makes it easy to find the options you need. Advanced functions are coded with the intelligence to adapt to your settings, and when you're ready to take charge, parameters have the granularity to dial in performance just the way you want.
Quickly find tuning options and add preferred tools to the list.
EZ FLASH 3
Flash the latest BIOS via the internet from within the BIOS.
S.M.A.R.T
Check your storages devices' Self-Monitoring, Analysis, and Reporting Technology logs to gauge reliability and to identify potential failures.
GPU POST
Automatically detect selected ASUS graphics cards to view detailed information.
SECURE ERASE
Restore your SSDs to factory-fresh condition.
LAST MODIFIED LOG
Track the latest changes and save preferred profiles onto a USB drive.
SATA PORT RENAMING
Rename SATA ports for easy identification.
SEARCH FUNCTION
Quickly and easily find the option or setting you're looking for.
ASUS USER PROFILE
Port configuration settings between different BIOS versions or share them with friends.
Q-FAN CONTROL
Configure the fan's operating speed manually or use pre-configured fan profiles to quickly select Standard, Silent, Turbo or Full Speed modes. By default, system fans will automatically switch to full speed if the temperature reaches 75°C.
Designed to simplify setup, EZ mode presents all the vital settings and stats on a single page. With guided wizards, drag-and-drop functionality, and one-click application of important settings, your rig will be up and running in no time.
The proprietary ROG GameFirst VI utility is designed to help all users — beginners, experts, and everyone in between — optimize network settings to ensure smooth online gameplay. New to this generation, GameFirst VI features AI-enhanced identification and boost technology to ensure faster and smarter network optimization.
GameFirst VI analyzes your usage patterns and the digital signatures of your applications and compares them to a database of over 200,000 apps. The database is regularly updated to ensure that apps are recognized.
GameFirst VI intelligently switches application priority and adjusts bandwidth accordingly, depending on the situation. When gaming, it accelerates and prioritizes game packets to give you supersmooth online gameplay — even when you're streaming high-quality video to your audience or transferring large files.
An intuitive graph gives you an overview of the network in real time. Simply click on the tab to view current bandwidth usage of each application, geolocation status of each network connection, and an analysis of each WiFi channel.
WiFi Quick Assist analyzes network information — including real-time bandwidth use — to generate a graph that provides a clear overview of current network status. When paired with a ROG router, WiFi Quick Assist lets you quickly scan your WiFi network to find the best channel; then you can use Game Boost to prioritize gaming devices and packets.
Armoury Crate is a new software utility designed to give you centralized control of supported gaming products, making it easy to tune the look and feel of your system. From a single intuitive interface, Armoury Crate lets you easily customize RGB lighting and effects for compatible devices and synchronize them with Aura Sync to create a unified lighting scheme across your system. You can also use Armoury Crate to download the user manual, drivers and software. In addition, Armoury Crate features a dedicated product registration page as well as a news feed to help you stay in touch with the gaming community.
*Windows 10 required for full Aura Sync functionality within Armoury Crate. For Windows 8 and earlier versions, standalone Aura Sync software is available for free download from the product support site.
RAMCache lll software turns milliseconds into microseconds to boost game-load times. Fully compatible with the latest NVM Express® storage options, its uniquely intelligent technology effectively caches an entire storage device so that favorite games and apps launch at breakneck speeds.
- Products certified by the Federal Communications Commission and Industry Canada will be distributed in the United States and Canada. Please visit the ASUS USA and ASUS Canada websites for information about locally available products.
- All specifications are subject to change without notice. Please check with your supplier for exact offers. Products may not be available in all markets.
- Specifications and features vary by model, and all images are illustrative. Please refer to specification pages for full details.
- PCB color and bundled software versions are subject to change without notice.
- Brand and product names mentioned are trademarks of their respective companies.
- Specifications and features vary by model, and all images are illustrative. Please refer specification pages for full details.
- *Precise specifications and features vary by model . Please refer to the specification page
- The product (electrical , electronic equipment, Mercury-containing button cell battery) should not be placed in municipal waste. Check local regulations for disposal of electronic products.
- The use of trademark symbol (TM, ®) appears on this website means that the word text, trademarks, logos or slogans, is being used as trademark under common laws protection and/or registered as Trademark in U.S. and/or other country/region.
ASUS aspires to deliver the incredible in everything it does. With more than 17,000 employees around the globe with a world-class R&D team of 5,500 engineers, ASUS is dedicated to the design and manufacture of products that perfectly meet the needs of today’s (and tomorrow’s) digital home and office. ASUS’ broad portfolio includes motherboards, graphics cards, displays, desktop PCs, all-in-one PCs, laptops, servers, wireless networking devices, tablets, smartphones and wearables. Driven by innovation and committed to quality, the company won 4,385 awards and earned approximately US$13.3 billion of revenue in 2016.
© 2020 ASUS Computer International. All Rights Reserved. ASUS is a registered trademark of ASUSTeK Computer. All specifications and terms are subject to change without notice. Please check with your supplier for exact offers on selected models. Products may not be available in all markets. Product may not be exactly as shown in photos. Actual colors may differ from their appearance due to variation of monitor restrictions and color processing. All trademarks are registered to their respective companies. ASUS shall not be liable for technical or editorial errors or omissions contained herein.
- SupremeFX
Built-in ROG SupremeFX audio technology ensures pristine audio for ROG Strix B550-A Gaming. Along with ensuring a flat frequency response for a neutral, detailed sound signature, it offers two front-panel outputs driven by op-amps that deliver high-quality audio to gaming headsets. - AI noise-canceling microphone
AI noise-canceling microphone software is exclusively featured on ROG Strix motherboards and supports 3.5 mm, USB, or Bluetooth headsets. The utility leverages a massive deep-learning database to preserve the sound of your voice while eliminating distracting keyboard clatter, mouse clicks, and other forms of environmental noise. And it only places a slight load on the CPU, ensuring minimal impact on gaming performance. - Sonic Studio III
Sonic Studio supports HRTF-based virtual surround for VR headsets, casting an immersive aural landscape that draws you deeper into the action. The intuitive Sonic Studio interface also offers a range of EQ options and one-click presets, allowing you to tailor acoustics to suit personal preferences or the characteristics of your headset. - Power design
Digital power control and an array of power stages ensure ROG Strix B550-A Gaming has the muscle to control the latest CPUs. - Procool power connector
The ProCool socket is built to exacting specifications to ensure flush contact with the PSU power lines, enabling lower impedance and better heat dissipation. - DIGI+ power control
ASUS DIGI+ power control is a set of controllers for digital VRM and DRAM voltage. These controllers offer ultra-precise memory and voltage tuning for optimal system efficiency, stability, and performance. - Teamed power stages
12+2 power stages combine high-side and low-side MOSFETs and drivers into a single package, delivering the power and efficiency that the CPUs demand. - Alloy choke and capacitor
Superior chokes and durable capacitors are engineered to resist extreme temperatures and provide up to 110% better performance than the industry standard.
Designed for those seeking to get the most out of their build, ROG Strix B550 Gaming series motherboards offer a feature-set usually found in the higher-end Gaming series. ROG Strix B550-A Gaming is well-equipped, offering robust power delivery and effective cooling. As an added bonus, outstanding performance is complemented by a stunning finish and cyberpunk-inspired aesthetics that present a standout look.
Specs Overview
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- Product Description
- ASUS ROG STRIX B550-A GAMING - motherboard - ATX - Socket AM4 - AMD B550
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- Product Type
- Motherboard - ATX
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- Chipset Type
- AMD B550
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- Processor Socket
- 1 x Socket AM4
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- Compatible Processors
- Ryzen (supports 3rd Generation Ryzen)
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- Max RAM Size
- 128 GB
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- RAM Supported
- 4 DIMM slots - DDR4, non-ECC, ECC, unbuffered
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- Storage Ports
- 6 x SATA-600 (RAID), 2 x M.2
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- USB / FireWire Ports
- 1 x USB-C Gen 2 + 1 x USB 3.2 Gen 2 + 4 x USB 3.2 Gen 1 + 2 x USB 2.0 + (2 x USB 3.2 Gen 1 + 4 x USB 2.0 via headers)
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- Audio
- HD Audio (8-channel)
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- LAN
- 2.5 Gigabit Ethernet