ASUS PRIME B550M-K ARGB Motherboard AMD

PRIME B550M-K ARGB

Socket AM4

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

* Refer to www.asus.com for CPU support list.

AMD B550 Chipset

2 x DIMM slots, Max. 64GB, 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 https://www.asus.com/support/.

1 x DisplayPort**
1 x HDMI™ port**** Graphics specifications may vary between CPU types. Please refer to AMD CPU specifications.
** Supports max. 4K@60Hz as specified in DisplayPort 1.4.
*** Supports 4K@60Hz as specified in HDMI 2.1.

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 (https://www.asus.com/support/FAQ/1037507/).
– To ensure compatibility of the device installed, please refer to https://www.asus.com/support/ for the list of supported peripherals.

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 2242/2260/2280 (supports PCIe 4.0 x4 & SATA modes)

AMD Ryzen™ 5000 G-Series/ 4000 G-Series Desktop Processors
M.2_1 slot (Key M), type 2242/2260/2280 (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

* AMD RAIDXpert2 Technology supports both PCIe RAID 0/1/10 and SATA RAID 0/1/10.

1 x Realtek 1Gb Ethernet

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Rear USB (Total 6 ports)
4 x USB 3.2 Gen 1 (5G) ports (4 x Type-A)
2 x USB 2.0 ports (2 x Type-A)Front USB (Total 7 ports)
1 x USB 3.2 Gen 1 (5G) connector (supports USB Type-C®)
1 x USB 3.2 Gen 1 (5G) header supports 2 additional USB 3.2 Gen 1 ports
2 x USB 2.0 headers support 4 additional USB 2.0 ports

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 playbackAudio 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.

4 x USB 3.2 Gen 1 (5G) 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
1 x PS/2 Keyboard/Mouse combo port

Fan and Cooling related
1 x 4-pin CPU Fan header
2 x 4-pin Chassis Fan headersPower 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 (5G) connector (supports USB Type-C®)
1 x USB 3.2 Gen 1 (5G) header supports 2 additional USB 3.2 Gen 1 ports
2 x USB 2.0 headers support 4 additional USB 2.0 ports

Miscellaneous
3 x Addressable Gen 2 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 (14-1 pin)
1 x 10-1 pin System Panel header

ASUS 5X PROTECTION III
– DIGI+ VRM
– LANGuard
– Overvoltage Protection
– SafeSlot Core
– Stainless-Steel Back I/OASUS Q-Design
– Q-DIMM
– Q-LED Core
– Q-Slot

ASUS Thermal Solution
– Aluminum heatsink design

Aura Sync
– Addressable Gen 2 headers

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
ASUS CPU-Z
Norton 360 Deluxe (60 Days Free Trial)
WinRARUEFI BIOS
ASUS EZ DIY
– ASUS CrashFree BIOS 3
– ASUS EZ Flash 3
– ASUS UEFI BIOS EZ Mode

128 Mb Flash ROM, UEFI AMI BIOS

WOL by PME, PXE

Cables
2 x SATA 6Gb/s cablesMiscellaneous
1 x I/O Shield
1 x Screw package for M.2 SSD

1 x User guide

Windows® 11, Windows® 10 64-bit

micro-ATX Form Factor
9.6 inch x 8.7 inch ( 24.4 cm x 22.1 cm )