Asus
Asus Prime B550M-A WIFI II Desktop Motherboard - AMD B550 Chipset - Socket AM4 - Micro ATX (primeb550m-awifiii)
- SKU:
- 19190827
- MPN:
- primeb550m-awifiii
- Availability:
- Usually ships the same or next business day.
- Shipping:
- Calculated at Checkout
- Stock Update:
- 12/08/2025 06:53:44 PM PST
- Stock Update:
- 12/08/2025 06:53:44 PM PST
Description
This item is brand-new, factory sealed.
AMD B550 (Ryzen AM4) micro ATX motherboard with dual M.2, PCIe 4.0, Wi-Fi 6, 1 Gb Ethernet, HDMI, DVI-D, D-Sub, SATA 6 Gbps, USB 3.2 Gen 2 Type-A, and Aura Sync RGB lighting supportAMD AM4 Socket: Ready for Ryzen 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series Desktop Processors
Comprehensive Cooling: VRM heatsink, PCH heatsink, hybrid fan headers, and Fan Xpert 2+ utility
Ultrafast Connectivity: Dual M.2, PCIe 4.0, Wi-Fi 6, 1 Gb Ethernet, USB 3.2 Gen 2 Type-A support
Aura Sync RGB Lighting: Onboard addressable Gen 2 header and RGB headers for RGB LED strips, easily synced with Aura Sync-capable hardware
Prime
ASUS Prime series is expertly engineered to unleash the full potential of 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series AMD Ryzen platform. Boasting a robust power design, comprehensive cooling solutions and intelligent tuning options, Prime B550 series motherboards provide daily users and DIY PC builders a range of performance tuning options via intuitive software and firmware features.
Tune It Your Way
Comprehensive controls form the foundation of the ASUS Prime series. The Prime B550 motherboard packs flexible tools to tune every aspect of your system, enabling you to tweak performance settings to perfectly match the way you work maximizing your productivity.
Cool to the Core
Prime B550 series is engineered with multiple onboard heatsinks and an array of hybrid fan headers to ensure your rig stays cool and stable under intense workloads.CPU
AMD Ryzen 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series Desktop Processors
Refer to www.asus.com for CPU support list.Chipset
B550Memory
4 x DIMM, Max. 128GB, DDR4
4866(OC)/4800(OC)/4600(OC)/4466(OC)/4400(OC)/4333(OC)/4266(OC)/4200(OC)/4133(OC)/4000(OC)/3866(OC)/3733(OC)/3600(OC)/3466(OC)/3400(OC)/3333(OC)/3200/3000/2933/2800/2666/2400/2133, Un-buffered Memory
Dual Channel Memory Architecture
ECC memory (ECC mode) support varies by CPU.
Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists), and memory frequency support depends on the CPU types.Graphics
1 x D-Sub port
1 x DVI-D port
1 x HDMI port
Graphics specifications may vary between CPU types.
Supports 4K at 60Hz as specified in HDMI 2.1.Expansion Slots
AMD Ryzen 5000 Series/ 3000 Series Desktop Processors
1 x PCIe 4.0 x16 slot (supports x16 mode)
AMD Ryzen 5000 G-Series/ 4000 G-Series Desktop Processors
1 x PCIe 3.0 x16 slot (supports x16 mode)
AMD B550 Chipset
2 x PCIe 3.0 x1 slotsStorage
Supports 2 x M.2 slots and 4 x SATA 6Gb/s ports
AMD Ryzen 5000 Series/ 3000 Series Desktop Processors
M.2_1 slot (Key M), type 2242/2260/2280/22110 (supports PCIe 4.0 x4 and SATA modes)
AMD Ryzen 4000 G-Series Desktop Processors
M.2_1 slot (Key M), type 2242/2260/2280/22110 (supports PCIe 3.0 x4 and SATA modes)
AMD B550 Chipset
M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 3.0 x4 and SATA modes)
4 x SATA 6Gb/s ports
Support RAID 0, 1, 10Ethernet
1 x Realtek 1Gb Ethernet
ASUS LANGuardWireless and Bluetooth
2x2 Wi-Fi 6 (802.11 a/b/g/n/ac/ax) + BT5.2
Wi-Fi 6
2x2 Wi-Fi 6 (802.11 a/b/g/n/ac/ax)
Supports 2.4/5GHz frequency band
Bluetooth v5.2USB
2 x USB 3.2 Gen 2 ports (2 x Type-A)
4 x USB 3.2 Gen 1 ports (4 x Type-A)
Front USB:Total 6 ports
1 x USB 3.2 Gen 1 header supports additional 2 USB 3.2 Gen 1 ports
2 x USB 2.0 headers support additional 4 USB 2.0 portsAudio
Realtek 7.1 Surround Sound High Definition Audio CODEC
- Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking
- Supports up to 24-Bit/192 kHz playback
Audio Features
- Audio Shielding
- LED-illuminated audio trace path design
- Premium audio capacitors
- Dedicated audio PCB layers
A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output.Back Panel I/O Ports
2 x USB 3.2 Gen 2 ports (2 x Type-A)
4 x USB 3.2 Gen 1 ports (4 x Type-A)
1 x D-Sub port
1 x DVI-D port
1 x HDMI port
1 x Wi-Fi Module
1 x Realtek 1Gb Ethernet port
3 x Audio jacks
1 x PS/2 Keyboard/Mouse combo portInternal I/O Connectors
Fan and Cooling related
1 x 4-pin CPU Fan header
1 x 4-pin CPU OPT Fan header
2 x 4-pin Chassis Fan headers
Power related
1 x 24-pin Main Power connector
1 x 8-pin +12V Power connector
Storage related
2 x M.2 slots (Key M)
4 x SATA 6Gb/s ports
USB
1 x USB 3.2 Gen 1 header supports additional 2 USB 3.2 Gen 1 ports
2 x USB 2.0 headers support additional 4 USB 2.0 ports
Miscellaneous
1 x Addressable Gen 2 header
2 x AURA RGB headers
1 x Clear CMOS header
1 x COM Port header
1 x Front Panel Audio header (AAFP)
1 x S/PDIF Out header
1 x Speaker header
1 x SPI TPM header (14-1pin)
1 x 10-1 pin System Panel headerSpecial Features
ASUS 5X PROTECTION III
- DIGI+ VRM
- LANGuard
- Overvoltage Protection
- SafeSlot Core
- Stainless-Steel Back I/O
ASUS Q-Design
- Q-DIMM
- Q-Slot
ASUS Thermal Solution
- VRM heatsink design
AURA Sync
- AURA RGB headers
- Addressable Gen 2 headerSoftware Features
ASUS Exclusive Software
Armoury Crate
- AURA Creator
- AURA Sync
AI Suite 3
- Performance and Power Saving Utility
TurboV EVO
EPU
DIGI+ VRM
Fan Xpert 2+
- EZ update
- Lighting Control
ASUS CPU-Z
AI Charger
DAEMON Tools
MyASUS
Norton Anti-virus software (Free Trial version)
WinRAR
UEFI BIOS
ASUS EZ DIY
- ASUS CrashFree BIOS 3
- ASUS EZ Flash 3
- ASUS UEFI BIOS EZ ModeBIOS
256 Mb Flash ROM, UEFI AMI BIOSManageability
WOL by PME, PXEAccessories
Cables
2 x SATA 6Gb/s cables
Miscellaneous
1 x ASUS Wi-Fi moving antennas
1 x I/O Shield
1 x M.2 SSD screw package
Installation Media
1 x Support DVD
Documentation
1 x User manualForm Factor
microATX
24.4cm x 24.4cmItem Dimension (L"xW"xH")
11 x 11 x 3
Weight
3 lbs
Warranty Information
3 Years
Specs
| Onboard Interfaces | |
| Number of SATA Interfaces | 4 |
| Total Number of Onboard USB Ports | 6 |
| Number of Onboard USB 3.2 Ports | 2 |
| Number of M.2 Interfaces | 2 |
| Onboard S/PDIF Header | Yes |
| Number of Onboard USB 2.0 Ports | 4 |
| Physical Characteristics | |
| Form Factor | Micro ATX |
| Width | 9.6" |
| Depth | 9.6" |
| I/O Expansions | |
| Number of PCI Express x1 Slots | 2 |
| Total Number of Expansion Slots | 3 |
| Number of PCI Express x16 Slots | 1 |
| Total Number of PCI Express Slots | 3 |
| Interfaces/Ports | |
| VGA | Yes |
| DVI | Yes |
| Number of USB 3.2 Ports | 6 |
| HDMI | Yes |
| Total Number of USB Ports | 6 |
| Number of Network (RJ-45) Ports | 1 |
| Memory | |
| Memory Technology | DDR4 SDRAM |
| Number of Memory Slots | 4 |
| Memory Speed Supported |
|
| Memory Form Factor |
|
| Maximum Memory Supported | 128 GB |
| I/O Controller | |
| RAID Supported | Yes |
| Controller Type | Serial ATA/600 |
| RAID Levels |
|
| Video | |
| Onboard Video | CPU Dependent Video |
| General Information | |
| Brand Name | Asus |
| Manufacturer Website Address | http://usa.asus.com |
| Marketing Information | AMD B550 (Ryzen AM4) micro ATX motherboard with dual M.2, PCIe 4.0, Wi-Fi 6, 1 Gb Ethernet, HDMI, DVI-D, D-Sub, SATA 6 Gbps, USB 3.2 Gen 2 Type-A, and Aura Sync RGB lighting support AMD AM4 Socket: Ready for Ryzen™ 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series Desktop Processors Comprehensive Cooling: VRM heatsink, PCH heatsink, hybrid fan headers, and Fan Xpert 2+ utility Ultrafast Connectivity: Dual M.2, PCIe 4.0, Wi-Fi 6, 1 Gb Ethernet, USB 3.2 Gen 2 Type-A support Aura Sync RGB Lighting: Onboard addressable Gen 2 header and RGB headers for RGB LED strips, easily synced with Aura Sync-capable hardware PRIME ASUS Prime series is expertly engineered to unleash the full potential of 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series AMD Ryzen platform. Boasting a robust power design, comprehensive cooling solutions and intelligent tuning options, Prime B550 series motherboards provide daily users and DIY PC builders a range of performance tuning options via intuitive software and firmware features. Tune It Your Way Comprehensive controls form the foundation of the ASUS Prime series. The Prime B550 motherboard packs flexible tools to tune every aspect of your system, enabling you to tweak performance settings to perfectly match the way you work - maximizing your productivity. All-around Energy Efficiency With the Energy Processing Unit (EPU), you'll enjoy system-wide power savings. The EPU automatically optimizes power consumption and maximizes savings with Away mode. Cool to the Core Prime B550 series is engineered with multiple onboard heatsinks and an array of hybrid fan headers to ensure your rig stays cool and stable under intense workloads. VRM Heatsink and Thermal Pads A VRM heatsink with underneath thermal pad improves heat transfer from the MOSFETs and chokes for better cooling performance. Build on a Solid Foundation Prime B550 motherboard provides all the fundamentals to boost daily productivity, so your system will be ready for action with stable power, intuitive cooling and flexible transfer options. Little Things Make a Big Difference Prime B550 series adds the nuanced details that improve every experience, from exclusive codecs that provide pristine audio quality to intuitive RGB lighting controls that let you customize your system to create a uniquely personal look. Outstanding Audio Combined onboard features deliver elevated audio Intelligent design and premium hardware create audio quality unlike anything you've ever experienced. Audio Shielding Separates analog/digital signal domains, significantly reducing multi-lateral interference. Separate Layer for Left and Right Tracks Ensures minimal crosstalk between audio paths. |
| Product Type | Desktop Motherboard |
| Product Name | Prime B550M-A WIFI II Desktop Motherboard |
| Manufacturer | ASUS Computer International |
| Manufacturer Part Number | PRIME B550M-A WIFI II |
| Product Model | B550M-A WIFI II |
| Product Line | Prime |
| Processor & Chipset | |
| Chipset Manufacturer | AMD |
| Processor Supported |
|
| Total Processor Supported | 1 |
| Processor Socket | Socket AM4 |
| Chipset Model | B550 |
| Network & Communication | |
| Wireless LAN | Yes |
| Wireless LAN Standard | IEEE 802.11 a/b/g/n/ac/ax |
| Bluetooth | Yes |
| Gigabit Ethernet | Yes |
| Audio | |
| Audio Channels | 7.1 |
Warranty Information
All Items are Brand New, Factory Sealed and come with a standard warranty. [Read our policies]
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Asus Prime B550M-A WIFI II Desktop Motherboard - AMD B550 Chipset - Socket AM4 - Micro ATX (primeb550m-awifiii)
$99.26