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ASUS

Prime B550M-K WIFI

SKU37976MPN90MB1R80-M0VAY0
ProcessorAMD Socket AM4 for AMD Ryzen 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series Desktop * * Refer to for CPU support list.
Memory64 GB DDR4-5100 ECC
Storage6 GB
GraphicsIntegrated
OSWindows 11

Specifications 20 normalized

Processor
Processor
AMD Socket AM4 for AMD Ryzen 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series Desktop Processors* * Refer to for CPU support list.
Chipset
AMD B550 Chipset
Memory & storage
Memory
2 x DIMM slots, max. 64 GB, DDR4 5100(OC)/4866(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. * Supported memory types, data rate (speed), and number of DRAM modules vary depending on the CPU and memory configuration, for more information please refer to CPU/Memory Support list under the Support tab of product information site or visit . Adjustments will be made based on the specifications of mass-produced memory products available on the market.
Storage
Total 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 2280 (supports PCIe 4.0 x4 & SATA modes) AMD Ryzen 5000 G-Series/ 4000 G-Series Desktop Processors M.2_1 slot (Key M), type 2280 (supports PCIe 3.0 x4 & SATA modes) AMD B550 Chipset M.2_2 slot (Key M), type 2242/2260/2280/22110 (supports PCIe 3.0 x4 & SATA modes) 4 x SATA 6Gb/s ports
Graphics
Graphics
1 x DisplayPort** 1 x HDMI port*** * Available only on processors featuring integrated graphics. Graphics specifications may vary between CPU types. Please refer to AMD CPU specifications. ** Supports max. 4K@60 Hz as specified in DisplayPort 1.4. *** Supports 4K@60 Hz as specified in HDMI 2.1.
Display
Back Panel I/O Ports
4 x USB 5Gbps ports (4 x Type-A) 2 x USB 2.0 ports (2 x Type-A) 1 x DisplayPort 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
Connectivity
Networking
1 x Realtek 1Gb Ethernet ASUS LANGuard
Wireless & Bluetooth
Wi-Fi 6 1x1 Wi-Fi 6 (802.11ax) Supports 2.4/5 GHz frequency band Bluetooth * * The Bluetooth version may vary, please refer to the Wi-Fi module manufacturer's website for the latest specifications.
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 1 x PCIe 3.0 x1 slot * Please check the PCIe bifurcation table on the support site ( ). - To ensure compatibility of the device installed, please refer to for the list of supported peripherals.
USB
Rear USB (Total 6 ports) 4 x USB 5Gbps ports (4 x Type-A) 2 x USB 2.0 ports (2 x Type-A) Front USB (Total 6 ports) 1 x USB 5Gbps header supports 2 additional USB 5Gbps ports 2 x USB 2.0 headers support 4 additional USB 2.0 ports
Internal I/O Connectors
Fan and Cooling Related 1 x 4-pin CPU Fan header 2 x 4-pin Chassis Fan headers Power Related 1 x 24-pin Main Power connector 1 x 8-pin +12V CPU Power connector Storage Related 2 x M.2 slots (Key M) 4 x SATA 6Gb/s ports USB 1 x USB 5Gbps header supports 2 additional USB 5Gbps ports 2 x USB 2.0 headers support 4 additional USB 2.0 ports Miscellaneous 3 x Addressable RGB Gen 2 headers 1 x Clear CMOS header 1 x COM Port header 1 x Front Panel Audio header (F_AUDIO) 1 x S/PDIF Out header 1 x SPI TPM header (14-1 pin) 1 x 10-1 pin Front Panel System header
Camera & audio
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 - 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.
Physical & build
Form Factor
micro-ATX Form Factor 9.6 inch x 8.7 inch (24.4 cm x 22.1 cm)
Operating system & software
Operating System
Windows 11, Windows 10 64-bit
Software Features
ASUS Exclusive Software Armoury Crate - Aura Creator - Aura Sync - Fan Xpert 2+ ASUS DriverHub - ASUS CPU-Z - ASUS GlideX - Norton 360 Deluxe (60 Days Free Trial) - WinRAR (40 Days Free Trial) Adobe Creative Cloud (Free Trial)** UEFI BIOS ASUS EZ DIY - ASUS CrashFree BIOS 3 - ASUS EZ Flash 3 - ASUS UEFI BIOS EZ Mode * For more software features, please visit the asus support site or refer to www.asus.com/support for additional information. ** For detailed information on the supported models and restricted regions for this redemption offer, please refer to .
Warranty & support
RAID Support
AMD RAIDXpert2 Technology Supports both PCIe RAID 0/1/10 and SATA RAID 0/1/10
Other
Special Features
ASUS 5X PROTECTION III - DIGI+ VRM - LANGuard - Overvoltage protection - SafeSlot Core - Stainless-steel back I/O ASUS Q-Design - Q-DIMM - Q-LED Core - Q-Slot ASUS Thermal Solution - Aluminum heatsink design Aura Sync - Addressable RGB Gen 2 headers
BIOS
16 MB (128Mb) 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 antenna 1 x I/O shield 1 x M.2 anchor package Documentation 1 x Quick start guide

I/O Ports 6

  • 4 x USB 5Gbps ports (4 x Type-A)
  • 2 x USB 2.0 ports (2 x Type-A)
  • 1 x DisplayPort
  • 1 x HDMI port
  • 1 x Realtek 1Gb Ethernet port
  • 3 x Audio jacks

Price history

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