Description
FEATURES
Micro-ATX Form Factor
AMD B550 Chipset
Socket AM4
2x DDR4 DIMM Slots, Supports up to 64GB
Supports up to DDR4-5100(OC)
1x PCIe 4.0 x16, 1x PCIe 3.0 x1 Slot
1x M.2 PCIe 4.0 x4 M-Key Slot, 1x M.2 PCIe 3.0 x4 M-Key Slot
4x SATA 6Gbps Ports
4x USB 3.2 Gen 1 (5Gbps) Type-A Ports, 2 x USB 2.0 Type-A Ports
1x DisplayPort 1x HDMI port
1x Realtek Gigabit Ethernet port
3x Audio jacks, 1x PS/2 Keyboard/Mouse Combo Port
Realtek 7.1 Surround Sound High Definition Audio Codec
Audio Shielding
Premium Audio Capacitors
Onboard Addressable Gen 2 Headers for RGB LED Strips
TECHNICAL SPECIFICATIONS
Brand: ASUS
Series: PRIME
Model: PRIME B550M-K ARGB
CPU: AMD Socket AM4 for AMD Ryzen 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series Desktop Processors
Chipset: AMD B550 Chipset
Memory: 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/.
Graphics: 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.
Expansion Slots
CPU Direct: 1 x PCIe 4.0 x16 slot (supports x16 mode)
NOTE: AMD Ryzen 5000 G-Series/ 4000 G-Series Desktop Processors support PCIe 3.0 for the primary x16 slot
AMD B550 Chipset: 1 x PCIe 3.0 x1 slot
Storage
CPU Direct: M.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 & SATA modes)
NOTE: M.2_1 with AMD Ryzen 5000 G-Series/ 4000 G-Series Desktop Processors supports PCIe 3.0 NVMe SSDs
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.
Ethernet: 1 x Realtek 1Gb Ethernet
USB: 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
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.
Back Panel I/O Ports: 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
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 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
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
– Aluminium heatsink design
Aura Sync
– Addressable Gen 2 headers
BIOS: 128 Mb Flash ROM, UEFI AMI BIOS
Form Factor: micro-ATX Form Factor
9.6 inch x 8.7 inch ( 24.4 cm x 22.1 cm)
