ASUS PRIME B550M-K Micro-ATX Motherboard

Model

PRIME B550M-K

CPU

AMD AM4 Socket for AMD Ryzen™ 5000 Series/4000 G-Series/3000 Series Desktop Processors

Chipset

AMD B550

Memory

4 x DIMM, Max. 128GB, DDR4 (Supports up to 4800(O.C.)) Dual Channel, ECC support varies by CPU

Graphics

1 x D-Sub, 1 x DVI-D, 1 x HDMI 2.1 (4K@60Hz) (Varies by CPU)

Expansion Slots

1 x PCIe 4.0 x16 (Ryzen 5000/3000), 1 x PCIe 3.0 x16 (Ryzen 4000 G), 2 x PCIe 3.0 x1

Storage

2 x M.2 slots, 4 x SATA 6Gb/s, RAID 0/1/10 support

LAN

Realtek RTL8111H 1Gb Ethernet, ASUS LANGuard

Audio

Realtek ALC887/897 7.1 HD Audio, Supports Jack-detection, Multi-streaming, 24-Bit/192kHz playback

Audio Features

LED-illuminated design, Audio Shielding, Dedicated PCB layers, Premium Japanese capacitors

USB Ports (Rear)

2 x USB 3.2 Gen 2 (Type-A), 4 x USB 3.2 Gen 1 (Type-A)

USB Ports (Front)

2 x USB 3.2 Gen 1 (Type-A), 4 x USB 2.0 (Type-A)

Software Features

Armoury Crate, AI Suite 3, Fan Xpert 2+, TurboV EVO, EPU, Digi+ VRM, Norton Antivirus (60-day trial), UEFI BIOS

ASUS Special Features

5X Protection III, DIGI+ VRM, LANGuard, Overvoltage Protection, SafeSlot Core, Stainless-Steel Back I/O, Q-Design, Q-DIMM, Q-Slot, Aluminum heatsink

Back I/O Ports

1 x PS/2 (Keyboard/Mouse), 1 x DVI-D, 1 x D-Sub, 1 x HDMI, 1 x LAN (RJ45), 2 x USB 3.2 Gen 2 (Type-A), 4 x USB 3.2 Gen 1 (Type-A), 3 x Audio jacks

Internal I/O Ports

1 x CPU Fan, 2 x Chassis Fan, 1 x USB 3.2 Gen 1 (supports 2 ports), 2 x USB 2.0 (supports 4 ports), 2 x M.2 (PCIe 4.0/3.0 & SATA), 4 x SATA 6Gb/s, 1 x SPI TPM header, 1 x S/PDIF Out, 1 x 24-pin EATX Power, 1 x 8-pin EATX 12V Power, 1 x Front Panel Audio (AAFP), 1 x Clear CMOS, 1 x System Panel, 1 x COM port, 1 x Speaker Connector

Accessories

User Manual, I/O Shield, 2 x SATA 6Gb/s Cables, Supporting DVD, 1 x M.2 SSD Screw Package

BIOS

256 Mb Flash ROM, UEFI AMI BIOS

Manageability

WOL by PME, PXE

Operating System

Windows 10 64-bit

Form Factor

mATX (9.6" x 9.6") (24.4 cm x 24.4 cm)