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- Asus Prime B550M-K ARGB Socket Am4 Ddr4 Motherboard
- Asus Prime B550M-K ARGB Socket Am4 Ddr4 Motherboard
Asus Prime B550M-K ARGB Socket Am4 Ddr4 Motherboard
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ASUS Prime B550M-K ARGB - Micro-ATX Motherboard with RGB Lighting
Build your stylish AMD Ryzen system with the ASUS Prime B550M-K ARGB, a feature-packed Micro-ATX motherboard with addressable RGB lighting. Featuring support for Ryzen 5000/4000 G/3000 Series CPUs, DDR4 memory up to 5100MHz (OC), dual M.2 slots with PCIe 4.0 support, HDMI/DisplayPort outputs, Aura Sync RGB, and ASUS reliability features, this motherboard delivers excellent performance and customization for gaming and creative builds.
Key Features
- AMD Socket AM4 - Supports Ryzen 5000, 5000 G-Series, 4000 G-Series, and 3000 Series processors
- DDR4 Memory - 2 DIMM slots supporting up to 64GB at 5100MHz (OC)
- PCIe 4.0 Ready - PCIe 4.0 x16 slot and M.2 for next-gen performance
- Dual M.2 Slots - Two M.2 slots for ultra-fast NVMe SSDs
- Aura Sync RGB - 3x Addressable Gen 2 RGB headers for customizable lighting
- ASUS 5X Protection III - Comprehensive hardware safeguards
AMD B550 Chipset Platform
- PCIe 4.0 Support - Double bandwidth for graphics and storage (with compatible CPUs)
- Wide CPU Compatibility - Supports multiple Ryzen generations
- Advanced Overclocking - DDR4 up to 5100MHz with DOCP
- Dual Display Outputs - DisplayPort 1.4 and HDMI 2.1 (4K@60Hz)
Memory & Storage
DDR4 Memory Support:
- 2 x DIMM slots, maximum 64GB capacity
- DDR4 5100(OC)/4866(OC)/4600(OC)/4400(OC)/4266(OC)/4133(OC)/4000(OC)/3866(OC)/3733(OC)/3600(OC)/3466(OC)/3400(OC)/3333(OC)/3200/3000/2933/2800/2666/2400/2133 MHz
- Dual Channel Memory Architecture
- Un-buffered Memory support
- ECC memory support (varies by CPU)
- ASUS OptiMem technology for improved stability
Storage Options:
- M.2_1 slot: Type 2242/2260/2280, PCIe 4.0/3.0 x4 & SATA (CPU-dependent)
- M.2_2 slot: Type 2242/2260/2280/22110, PCIe 3.0 x4 & SATA (via B550 chipset)
- 4 x SATA 6Gb/s ports
- Supports AMD RAID 0, 1, 10
- M.2 heatsink for thermal management
Expansion & Connectivity
Expansion Slots:
- 1 x PCIe 4.0/3.0 x16 slot (x16 mode) - varies by CPU*
- 1 x PCIe 3.0 x1 slot
- *Ryzen 5000/3000: PCIe 4.0 | Ryzen 5000 G/4000 G: PCIe 3.0
Graphics Outputs (for Ryzen APUs):
- 1 x DisplayPort 1.4 - supports 4K@60Hz
- 1 x HDMI 2.1 - supports 4K@60Hz
- Graphics specs vary by CPU (requires Ryzen APU)
Networking:
- Realtek RTL8111H Gigabit Ethernet
- ASUS LANGuard - advanced surge protection
USB Connectivity:
- Rear Panel: 4x USB 3.2 Gen 1 (5Gbps) + 2x USB 2.0
- Front Panel: 1x USB 3.2 Gen 1 Type-C + 2x USB 3.2 Gen 1 + 4x USB 2.0 (via headers)
- Total: 7 USB 3.2 Gen 1 (including Type-C) + 6 USB 2.0
Technical Specifications
| CPU Support | AMD Socket AM4 (Ryzen 5000/5000 G/4000 G/3000 Series) |
| Chipset | AMD B550 |
| Memory | 2 x DIMM, DDR4, up to 64GB, up to 5100 MHz (OC) |
| Memory Architecture | Dual Channel, OptiMem |
| Expansion Slots | 1 x PCIe 4.0/3.0 x16, 1 x PCIe 3.0 x1 |
| M.2 Slots | 2 x M.2 (PCIe 4.0/3.0 x4 & SATA) |
| SATA Ports | 4 x SATA 6Gb/s |
| Ethernet | Realtek RTL8111H Gigabit LAN |
| Audio | Realtek ALC887/897 7.1 Surround (codec varies) |
| Rear USB | 4x USB 3.2 Gen 1, 2x USB 2.0 |
| Display Outputs | 1 x DisplayPort 1.4, 1 x HDMI 2.1 |
| RGB Headers | 3 x Addressable Gen 2 (Aura Sync) |
| Fan Headers | 1 x CPU (4-pin), 2 x Chassis (4-pin) |
| Power Connectors | 24-pin ATX, 8-pin EPS |
| Form Factor | Micro-ATX (24.4 x 24.4 cm) |
| BIOS | 128 Mb Flash ROM, UEFI BIOS |
ASUS Exclusive Technologies
ASUS 5X Protection III:
- SafeSlot Core+ - Reinforced PCIe slots with metal shielding
- LANGuard - Advanced signal-coupling and surge protection for Ethernet
- DIGI+ VRM - Digital power control for stable CPU delivery
- Overvoltage Protection - Guards against voltage spikes
- Stainless-Steel Back I/O - Enhanced durability and corrosion resistance
ASUS Q-Design:
- Q-LED Core - On-board LEDs for easy troubleshooting (CPU, DRAM, VGA, BOOT)
- M.2 Q-Latch - Tool-free M.2 SSD installation
Aura Sync RGB Lighting:
- 3 x Addressable Gen 2 RGB headers
- Support for RGB LED strips and compatible devices
- Synchronize lighting effects across components
- Control via Armoury Crate software
Cooling & Monitoring
Fan Connectors:
- 1 x 4-pin CPU Fan Connector
- 2 x 4-pin Chassis Fan Connectors
- Hybrid fan headers support PWM/DC mode auto-detection
- Fan Xpert 2+ for intelligent fan control
Thermal Solution:
- PCH heatsink for chipset cooling
- M.2 heatsink for SSD thermal management
- Optimized PCB layout for better heat dissipation
Audio & Multimedia
- Realtek ALC887/897 Audio Codec - 7.1 Surround Sound
- Audio Features: Audio shielding, Premium audio capacitors
- Rear Audio Jacks: Line In, Line Out, Microphone
Software Features
- Armoury Crate - Unified control for system tuning, RGB, and monitoring
- AI Suite 3 - System optimization and overclocking utilities
- Fan Xpert 2+ - Advanced fan control and monitoring
- ASUS EZ Flash 3 - Simple BIOS updates from USB
- Q-LED Core - POST code diagnostics for troubleshooting
Perfect For:
- Gaming PC builds with RGB lighting
- Content creation workstations
- Compact Micro-ATX builds
- Ryzen APU systems with dual monitor support
- Budget-friendly PCIe 4.0 builds
- Systems requiring extensive RGB customization
- Dual M.2 NVMe SSD configurations
Warranty Information
1 Year Store Warranty - This product is covered by our comprehensive store warranty. For complete warranty terms and conditions, please visit our Warranty Information Page.
System Requirements
- AMD Ryzen 5000, 5000 G-Series, 4000 G-Series, or 3000 Series Desktop Processor
- DDR4 memory modules (up to 2 DIMMs, 64GB maximum)
- ATX power supply with 24-pin and 8-pin EPS connectors
- Micro-ATX compatible computer case
- Windows 11 or Windows 10 64-bit
What's in the Box
- ASUS Prime B550M-K ARGB Motherboard
- 2 x SATA 6Gb/s cables
- 1 x M.2 Screw Package
- 1 x I/O Shield
- Quick Start Guide
- User Manual
Build with style using the ASUS Prime B550M-K ARGB - where reliable B550 performance meets customizable RGB lighting for your AMD Ryzen-powered system!