# ASUS Prime B550M-K AMD AM4 Zen 3 Ryzen 5000 & 3rd Gen Ryzen Micro-ATX Motherboard (PCIe 4.0, ECC Memory, 1Gb LAN, Dual M.2, USB 3.2 Gen 2 Type-A,HDMI 2.1 4K@60Hz, DVI, D-Sub) Silver

- Category: Motherboard
- Brand: ASUS
- Model: PRIME B550M-K
- Part number: PRIME B550M-K
- Price (US): $125.24
- Price last checked: 2026-08-06
- Rating: 4.4/5 from 185 Amazon reviews
- Warranty: 3 years
- Product page: https://buildmypc.net/component-details/motherboard/asus-prime-b550m-k/

## Specifications

| Spec | Value |
| --- | --- |
| Brand | ASUS |
| Model | PRIME B550M-K |
| Socket Type | AM4 |
| Chipset | AMD B550 |
| Form Factor | Micro ATX |
| Memory Type | 4 x DDR4 |
| Max Memory Support | 128 GB |

## Key Features

- AMD AM4 Socket and PCIe 4. 0: The perfect pairing for Zen 3 Ryzen 5000 & 3rd Gen AMD Ryzen CPUs
- Ultrafast Connectivity: 1x PCIe4.0 x16 SafeSlot, 1Gb LAN, dual M.2 slots (NVMe SSD)—one with PCIe 4.0 x4 connectivity, USB 3.2 Gen 2 Type-A , HDMI2.1 4K@60HZ, DisPlay port 1.2
- Comprehensive Cooling: PCH heatsink, hybrid fan headers and Fan Xpert 2 utility
- 5X Protection III: all-round protection with LANGuard, DRAM overcurrent protection, overvoltage protection, SafeSlot Core safeguards and stainless-steel back I/O
- Please ensure your BIOS is up to date if installing a compatible Ryzen 5000 series CPU. Visit ASUS site search by motherboard model name, click on “Support” tab, Drivers and Tools, then BIOS & Firmware to download the latest BIOS.

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