Learn more about ASUS PRIME B550M-A WIFI II

Model

Brand

ASUS

Model

PRIME B550M-A WIFI II

Part Number

90MB19X0-M0AAY0

Supported CPU

CPU Socket Type

AM4

CPU Type

Supports AMD Ryzen 5000 Series / 5000 G-Series / 4000 G-Series / 3000 Series Processors* Refer to www.asus.com for CPU support list.

Chipsets

Chipset

AMD B550

Memory

Number of Memory Slots

4x288pin (DDR4)

Memory Standard

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* * Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists), and memory frequency support depends on the CPU types.

Maximum Memory Supported

128GB

Channel Supported

Dual Channel

ECC Supported

ECC memory (ECC mode) support varies by CPU

Buffer Supported

Un-buffered

Expansion Slots

PCI Express 4.0 x16

1 x PCI Express 4.0 x16** Actual support may vary by CPU.

PCI Express x1

2 x PCIe 3.0 x1

Storage Devices

SATA 6Gb/s

4 x SATA 6Gb/s

M.2

AMD Ryzen 5000 Series/ 3000 Series Desktop Processors:M.2_1 slot (Key M), type 2242/2260/2280/22110 (supports PCIe 4.0 x4 & SATA modes) AMD Ryzen 5000 G-Series/ 4000 G-Series Desktop Processors:M.2_1 slot (Key M), type 2242/2260/2280/22110 (supports PCIe 3.0 x4 & SATA modes) AMD B550 Chipset:M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 3.0 x4 & SATA modes)

SATA RAID

0/1/10

Onboard Video

Onboard Video Chipset

Supported only by CPU with integrated graphic

Onboard Audio

Audio Chipset

Realtek 7.1 Surround Sound High Definition Audio CODEC

Audio Channels

7.1 Channels** A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output.

Onboard LAN

LAN Chipset

Realtek 1Gb Ethernet

Max LAN Speed

10/100/1000Mbps

Wireless LAN

Wi-Fi 6 802.11 a/b/g/n/ac/ax

Bluetooth

Bluetooth 5.2

Rear Panel Ports

Back 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 port

Internal I/O Connectors

Onboard 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

Other 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 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 header

Physical Spec

Form Factor

Micro ATX

LED Lighting

RGB

Dimensions (W x L)

9.6″ x 9.6″

Power Pin

1 x 24-pin Main Power connector 1 x 8-pin +12V Power connector

Windows 11 Compatibility

Windows 11

Ready

Features

Features

Special 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 header Software Features:ASUS Exclusive Software Armoury Crate – AURA Creator – AURA Sync AI Suite 3 – Performance and Power Saving Utility TurboV EVO EPUDIGI+ VRM Fan Xpert 2+ – EZ update – Lighting Control ASUS CPU-Z AI ChargerDAEMON 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 Mode BIOS:256 Mb Flash ROM, UEFI AMI BIOS Manageability:WOL by PME, PXEOperating System:Windows 11 64-bit, Windows 10