Brand:
ASUS Prime B550M-K ARGB AMD AM4 Micro-ATX Motherboard – B550 Chipset, DDR4 up to 64GB, PCIe 4.0, Dual M.2, Aura Sync ARGB
- Product Type: Micro-ATX Motherboard
- Brand: ASUS
- Model: PRIME B550M-K ARGB
- Socket: AMD AM4 (Ryzen 5000 / 5000G / 4000G / 3000 Series)
- Chipset: AMD B550
- Memory: 2 x DDR4 DIMM, up to 64GB, up to 5100MHz (OC)
- Storage: 2 x M.2 (1 x PCIe 4.0 x4) + 4 x SATA 6Gb/s
- Expansion: 1 x PCIe 4.0 x16, 1 x PCIe 3.0 x1
- Video Outputs: 1 x HDMI, 1 x DisplayPort
- Networking: Realtek 1Gb Ethernet
- Lighting: Aura Sync, 3 x Addressable Gen 2 RGB headers
- Warranty: 1 Year
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Description
The ASUS PRIME B550M-K ARGB is a compact Micro-ATX motherboard built on the AMD B550 chipset for the AM4 socket. It supports AMD Ryzen 5000, 5000 G-Series, 4000 G-Series and 3000 Series desktop processors, making it a solid, budget-friendly base for home, office and entry-level gaming builds.
It offers PCIe 4.0 for the graphics card and the main M.2 slot (with Ryzen 5000/3000 CPUs), two M.2 slots plus four SATA ports, dual-channel DDR4 memory up to 64GB, a front USB Type-C header and Aura Sync lighting through three addressable Gen 2 RGB headers.
Key Features
- AM4 socket with support for AMD Ryzen 5000 / 5000G / 4000G / 3000 Series processors
- AMD B550 chipset in a compact Micro-ATX form factor (24.4 x 22.1 cm)
- PCIe 4.0 x16 slot for the graphics card (Ryzen 5000/3000 Series)
- Dual M.2 slots, one with PCIe 4.0 x4 speed, plus 4 x SATA 6Gb/s ports with RAID 0/1/10
- Dual-channel DDR4 support up to 64GB and up to 5100MHz (OC)
- HDMI and DisplayPort outputs for Ryzen processors with integrated graphics
- Front USB 3.2 Gen 1 Type-C header and 4 x USB 3.2 Gen 1 rear ports
- Aura Sync RGB with 3 x Addressable Gen 2 headers
- Cooling controls: PCH heatsink, hybrid fan headers and Fan Xpert 2+
- ASUS 5X Protection III: DIGI+ VRM, LANGuard, overvoltage protection, SafeSlot Core, stainless-steel back I/O
Technical Specifications
| Feature | Details |
|---|---|
| Product Name | ASUS PRIME B550M-K ARGB |
| Brand | ASUS |
| Model | PRIME B550M-K ARGB (90MB1GC0-M0EAY0) |
| Form Factor | Micro-ATX, 24.4 x 22.1 cm (9.6 x 8.7 inch) |
| CPU Socket | AMD Socket AM4 Supports AMD Ryzen 5000 / 5000 G-Series / 4000 G-Series / 3000 Series desktop processors |
| Chipset | AMD B550 |
| Memory | 2 x DDR4 DIMM slots, dual channel Up to 64GB, un-buffered memory Up to 5100MHz (OC), 3200 / 3000 / 2933 / 2800 / 2666 / 2400 / 2133MHz native Supported speeds depend on the CPU and memory configuration |
| Graphics Outputs | 1 x HDMI (4K@60Hz) 1 x DisplayPort 1.4 (4K@60Hz) Requires a Ryzen processor with integrated graphics |
| Expansion Slots | 1 x PCIe 4.0 x16 (Ryzen 5000 / 3000 Series) PCIe 3.0 x16 with Ryzen 5000G / 4000G Series 1 x PCIe 3.0 x1 (chipset) |
| Storage | M.2_1: PCIe 4.0 x4 (Ryzen 5000 / 3000) or PCIe 3.0 x4 (G-Series) & SATA M.2_2: PCIe 3.0 x4 & SATA, 2242 to 22110 4 x SATA 6Gb/s ports RAID 0 / 1 / 10 |
| LAN | Realtek 1Gb Ethernet, ASUS LANGuard |
| Audio | Realtek 7.1 surround sound HD audio codec, up to 24-bit/192kHz |
| Rear USB | 4 x USB 3.2 Gen 1 (Type-A) 2 x USB 2.0 (Type-A) |
| Front USB | 1 x USB 3.2 Gen 1 Type-C connector 1 x USB 3.2 Gen 1 header (2 ports) 2 x USB 2.0 headers (4 ports) |
| Back Panel I/O | 1 x PS/2 keyboard/mouse combo port 1 x HDMI, 1 x DisplayPort 6 x USB (4 x USB 3.2 Gen 1, 2 x USB 2.0) 1 x Realtek 1Gb Ethernet port 3 x audio jacks |
| Fan Headers | 1 x 4-pin CPU fan, 2 x 4-pin chassis fans |
| Power Connectors | 1 x 24-pin main power, 1 x 8-pin +12V |
| RGB Lighting | Aura Sync, 3 x Addressable Gen 2 headers |
| Other Headers | COM port, front panel audio, S/PDIF out, SPI TPM (14-1 pin), speaker, clear CMOS, system panel |
| BIOS | 128Mb flash ROM, UEFI AMI BIOS |
| Operating System | Windows 11, Windows 10 64-bit |
| In the Box | PRIME B550M-K ARGB motherboard 2 x SATA 6Gb/s cables 1 x I/O shield 1 x M.2 SSD screw package 1 x User guide |
| Warranty | 1 Year |
