ASUS Prime B550M-K AM4 Micro-ATX Motherboard

•AMD AM4 socket: Ready for 3rd Gen AMD Ryzen™ and 3rd Gen AMD Ryzen™ with Radeon™ Graphics Processors
•Comprehensive cooling: PCH heatsink and Fan Xpert 2+
•Ultrafast connectivity: Dual M.2, PCIe 4.0, 1 Gb Ethernet, USB 3.2 Gen 2 Type-A
•5X Protection III: Multiple hardware safeguards for all-around system protection


Prime
ASUS Prime series is expertly engineered to unleash the full potential of the 3rd Generation AMD Ryzen platform. Boasting a robust power design, comprehensive cooling solutions and intelligent tuning options, Prime B550 series motherboards provide daily users and DIY PC builders a range of performance tuning options via intuitive software and firmware features.


Tune It Your Way
Comprehensive controls form the foundation of the ASUS Prime series. The Prime B550 motherboard packs flexible tools to tune every aspect of your system, enabling you to tweak performance settings to perfectly match how you work – maximizing your productivity.

CPU
Build in AMD AM4 Socket for 3rd Gen AMD Ryzen^TM and 3rd Gen AMD Ryzen^TM with Radeon^TM Graphics Processors
Chipset
AMD B550
Memory
3rd Gen AMD Ryzen^TM 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
3rd Gen AMD Ryzen^TM with Radeon^TM Graphics 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.
Graphic
1 x D-Sub
1 x DVI-D
1 x HDMI 2.1(4K at 60HZ)
Graphics specifications may vary between CPU types.
Expansion Slots
3rd Gen AMD Ryzen^TM Processors
1 x PCIe 4.0 x16 (x16 mode)
3rd Gen AMD Ryzen^TM with Radeon^TM Graphics Processors
1 x PCIe 3.0 x16 (x16 mode)
AMD B550 Chipset
2 x PCIe 3.0 x1
Storage
Total supports 2 x M.2 slot(s) and 4 x SATA 6Gb/s ports
3rd Gen AMD Ryzen^TM Processors :
1 x M.2_1 socket 3, with M Key, Type 2242/2260/2280/22110(PCIE 4.0 x4 and SATA modes) storage devices support
3rd Gen AMD Ryzen^TM with Radeon^TM Graphics Processors :
1 x M.2_1 socket 3, with M Key, Type 2242/2260/2280/22110(PCIE 3.0 x4 and SATA modes) storage devices support
AMD B550 Chipset :
1 x M.2_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(s),
Support Raid 0, 1, 10
LAN
Realtek RTL8111H 1Gb Ethernet
ASUS LANGuard
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
Choose the chassis with an HD audio module in the front panel to support 8-channel audio output.
USB Ports
Rear USB Port ( Total 6 )
2 x USB 3.2 Gen 2 port(s)(2 x Type-A)
4 x USB 3.2 Gen 1 port(s)(4 x Type-A)
Front USB Port ( Total 6 )
2 x USB 3.2 Gen 1 port(s)(2 x Type-A)
4 x USB 2.0 port(s)(4 x Type-A)

Software Features
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(s)
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(s)
Internal I/O Ports
1 x CPU Fan connector(s)
2 x Chassis Fan connector(s)
1 x USB 3.2 Gen 1(up to 5Gbps) connector(s) support(s) additional 2 USB 3.2 Gen 1 port(s)
2 x USB 2.0 connector(s) support(s) additional 4 USB 2.0 port(s)
1 x M.2 Socket 3 with M Key, type 2242/2260/2280/22110 storage devices support (SATA mode and X4 PCIE mode)
1 x M.2 Socket 3 with M Key, type 2242/2260/2280 storage devices support (SATA mode and X4 PCIE mode)
1 x SPI TPM header
4 x SATA 6Gb/s connector(s)
1 x S/PDIF out header(s)
1 x 24-pin EATX Power connector(s)
1 x 8-pin EATX 12V Power connectors
1 x Front panel audio connector(s) (AAFP)
1 x Clear CMOS jumper(s)
1 x System panel connector
1 x COM port header
1 x Speaker connector
Accessories
Users manual
I/O Shield
2 x SATA 6Gb/s cable(s)
1 x Supporting DVD
1 x M.2 SSD screw package(s)
BIOS
256 Mb Flash ROM, UEFI AMI BIOS
Manageability
WOL by PME, PXE
Operating System
Windows 10 64-bit
Form Factor
mATX Form Factor
Item Dimension (L inchxW inchxH inch)
11 x 11 x 3

Weight
3.00 lb

Warranty Information
3 Years