ASUS PRIME B550M-K

CPU

Build in AMD AM4 Socket 3rd Gen AMD Ryzen™ Processors

Refer to www.asus.com for CPU support list



Chipset

AMD B550



Memory

3rd Gen AMD Ryzen™ Processors

4 x DIMM, Max. 128GB, DDR4 4600(O.C)/4400(O.C)/4266(O.C.)/4133(O.C.)/4000(O.C.)/3866(O.C.)/3733(O.C.)/3600(O.C.)/3466(O.C.)/3333(O.C.)/3200/3000/2800/2666/2400/2133 MHz Un-buffered Memory

Next Generation AMD Ryzen PRO Processors

4 x DIMM, Max. 128GB, DDR4 4800(O.C.)/4600(O.C)/4466(O.C.)/4400(O.C)/4266(O.C.)/4133(O.C.)/4000(O.C.)/3866(O.C.)/3733(O.C.)/3600(O.C.)/3466(O.C.)/3333(O.C.)/3200/3000/2800/2666/2400/2133 MHz 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).



Graphic

1 x D-Sub

1 x DVI-D

1 x HDMI 2.1(4K@60HZ)



Expansion Slots

3rd Gen AMD Ryzen™ Processors

1 x PCIe 4.0 x16 (x16 mode)

AMD B550 Chipset

2 x PCIe 3.0 x1



Storage

Total supports 2 x M.2 slots and 4 x SATA 6Gb/s ports

3rd Gen AMD Ryzen™ Processors :

1 x M.2 Socket 3, with M Key, Type 2242/2260/2280/22110(PCIE 4.0 x4 and SATA modes) storage devices support

AMD B550 Chipset :

1 x M.2 Socket 3, with M Key, Type 2242/2260/2280 (PCIE 3.0 x4 and SATA modes) storage devices support

4 x SATA 6Gb/s port

Support Raid 0, 1, 10



LAN

Realtek RTL8111H 1Gb Ethernet



Audio

Realtek ALC887 7.1 Surround Sound High Definition Audio CODEC

Supports : Jack-detection, Multi-streaming, Front Panel Jack-retasking, up to 24-Bit/192kHz playback

Audio Feature :

LED-illuminated design

Audio Shielding

Dedicated audio PCB layers

Premium Japanese audio capacitors



USB Ports

Rear USB Port ( Total 6 )

2 x USB 3.2 Gen 2 port (2 x Type-A)

4 x USB 3.2 Gen 1 port (4 x Type-A)

Front USB Port ( Total 6 )

2 x USB 3.2 Gen 1 port (2 x Type-A)

4 x USB 2.0 port (4 x Type-A)



ASUS Exclusive Software

Armoury Crate

AI Suite 3

Performance And Power Saving Utility

TurboV EVO

EPU

Digi+ VRM

Fan Xpert 2+

EZ update

ASUS CPU-Z

AI Charger

DAEMON Tools

Norton Anti-virus software (Free Trial for 60 days)

WinRAR

UEFI BIOS

ASUS EZ DIY

ASUS CrashFree BIOS 3

ASUS EZ Flash 3

ASUS UEFI BIOS EZ Mode



ASUS Special Features

ASUS 5X PROTECTION III

ASUS DIGI+ VRM

ASUS LANGuard

ASUS Overvoltage Protection

ASUS SafeSlot Core

ASUS Stainless-Steel Back I/O

ASUS Q-Design

ASUS Q-DIMM

ASUS Q-Slot

ASUS Thermal Solution

Aluminum heatsink design

ASUS Lighting Control



Back I/O Ports

1 x PS/2 keyboard/mouse combo port(s)

1 x DVI-D

1 x D-Sub

1 x HDMI

1 x LAN (RJ45) port

2 x USB 3.2 Gen 2 (teal blue) (2 x Type-A)

4 x USB 3.2 Gen 1 (blue) Type-A

3 x Audio jack



Internal I/O Ports

1 x CPU Fan connector

2 x Chassis Fan connector

1 x USB 3.2 Gen 1(up to 5Gbps) connector support additional 2 USB 3.2 Gen 1 port

2 x USB 2.0 connector(s) support additional 4 USB 2.0 port

1 x M.2 Socket 3 with M key, type 2242/2260/2280/22110 storage devices support(SATA & PCIe 4.0 x4 mode)

1 x M.2 Socket 3 with M key, type 2242/2260/2280 storage devices support (SATA & PCIE 3.0 x 4 mode)

1 x SPI TPM header

4 x SATA 6Gb/s connector

1 x S/PDIF out header

1 x 24-pin EATX Power connector

1 x 8-pin EATX 12V Power connectors

1 x Front panel audio connector (AAFP)

1 x Clear CMOS jumper

1 x System panel connector

1 x COM port header

1 x Speaker connector



Operating System

Windows® 10 64-bit



Form Factor

mATX Form Factor

9.6 inch x 9.6 inch ( 24.4 cm x 24.4 cm )