ASUS PRIME B550M-A AMD B550 Socket AM4 micro ATX

SKU
90MB14I0-M0EAY0
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In Stock: 68 available
AMD B550 (Ryzen AM4) micro ATX motherboard with dual M.2, PCIe 4.0, 1 Gb Ethernet, HDMI/D-Sub/DVI, SATA 6 Gbps, USB 3.2 Gen 2 Type-A, and Aura Sync RGB headers support
  • AMD AM4 socket: Ready for 3rd Gen AMD Ryzenâ„¢ Processors
  • Comprehensive cooling: VRM heatsink, PCH heatsink, and Fan Xpert 2+
  • Ultrafast connectivity: Dual M.2, PCIe 4.0, Intel® WiFi 6, 1 Gb Ethernet, USB 3.2 Gen 2 Type-A
  • Aura Sync RGB: Onboard addressable Gen 2 header for RGB LED strips, easily synced with Aura Sync-capable hardware
More Information
Processor socket Socket AM4
Motherboard form factor Micro ATX
Compatible processor series AMD Ryzen 3000 Series
Supported memory types DDR4-SDRAM
SKU 90MB14I0-M0EAY0
EAN 4718017755528
Manufacturer ASUS
Availability In Stock
PDF URLs View PDF
ASUS Prime series is expertly engineered to unleash the full potential of 3rd Generation 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.

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.

Premium Japanese Capacitors
Premium parts provide an immersive sound signature, with exceptional fidelity.
Technical details
Motherboard chipset familyAMD
Motherboard chipsetAMD B550
Motherboard form factormicro ATX
Performance
Motherboard chipset familyAMD
Motherboard chipsetAMD B550
Motherboard form factormicro ATX
Processor
Processor manufacturerAMD
Compatible processor seriesAMD Ryzen 3000 Series
Processor socketSocket AM4
Memory
Number of memory slots4
Memory slots typeDIMM
Supported memory typesDDR4-SDRAM
Supported memory clock speeds2133,2400,2666,2800,3000,3200,3333,3466,3600,3733,3866,4000,4133,4266,4400,4600 MHz
Maximum internal memory128 GB
Storage controllers
Supported storage drive interfacesM.2, SATA
Internal I/O
Supported storage drive interfacesM.2, SATA
USB 2.0 connectors2
USB 3.2 Gen 1 (3.1 Gen 1) connectors1
Number of SATA connectors4
Rear panel I/O ports
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 quantity0
USB 2.0 ports quantity0
eSATA ports quantity0
VGA (D-Sub) ports quantity0
PS/2 ports quantity1
Firewire (IEEE 1394) ports0
HDMI ports quantity1
Ethernet LAN (RJ-45) ports1
DVI-D ports quantity1
Network
Ethernet LANYes
LAN controllerRealtek 8111H
BluetoothYes
Bluetooth version5.1
Features
Motherboard chipset familyAMD
Motherboard chipsetAMD B550
Motherboard form factormicro ATX
Harmonized System (HS) code84733020
BIOS
BIOS typeUEFI AMI
BIOS memory size256 Mbit
Logistics data
Harmonized System (HS) code84733020

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SKU
90MB14I0-M0EAY0
90MB0W90-M0EAY1
90MB14U0-M0EAY0
90MB14S0-M0EAY0
90MB14V0-M0EAY0
90MB14I0-M0EAYC
Manufacturer
ASUS
ASUS
ASUS
ASUS
ASUS
ASUS
Processor manufacturer
AMD
N/A
AMD
AMD
AMD
AMD
Motherboard form factor
micro ATX
N/A
ATX
ATX
micro ATX
micro ATX
Processor socket
Socket AM4
N/A
Socket AM4
Socket AM4
Socket AM4
Socket AM4
Supported memory types
DDR4-SDRAM
N/A
DDR4-SDRAM
DDR4-SDRAM
DDR4-SDRAM
DDR4-SDRAM
Component for
N/A
N/A
N/A
PC
N/A
PC
Number of memory slots
4 to 6
N/A
4 to 6
4 to 6
4 to 6
4 to 6