ASUS PRIME-B550M-A (Wi-Fi) II DDR4 MOTHERBOARD

Model PRIME B550M-A WIFI II

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

Memory

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.
<span “,sans-serif;minor-latin;=”” “times=”” new=”” “=”” style=’font-variant-ligatures: normal;font-variant-caps: normal; orphans: 2;widows: 2;-webkit-text-stroke-width: 0px;text-decoration-thickness: initial; text-decoration-style: initial;text-decoration-color: initial’>** Supports 4K@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 slots

Storage 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 & 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 & SATA modes)
AMD B550 Chipset
M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 3.0 x4 & SATA modes)
4 x SATA 6Gb/s ports
Support RAID 0, 1, 10

Ethernet 1 x Realtek 1Gb Ethernet

ASUS LANGuard

Wireless & Bluetooth
Wi-Fi 6

2×2 Wi-Fi 6 (802.11 a/b/g/n/ac/ax)

Supports 2.4/5GHz frequency band

Bluetooth v5.2

USB Rear USB:Total 6 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)

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 ports

Audio 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 port

Internal 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 header

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
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 Mode

BIOS 256 Mb Flash ROM, UEFI AMI BIOS

Manageability WOL by PME, PXE

Accessories 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 manual

Operating System Windows® 11, Windows® 10 64-bit

Form Factor microATX
24.4cm x 24.4cm