# MSI B550-A PRO ProSeries Motherboard (AMD Ryzen 5000, AM4, DDR4, PCIe 4.0, SATA 6Gb/s, M.2, USB 3.2 Gen 2, HDMI/DP, ATX)

- Category: Motherboard
- Brand: MSI
- Model: B550-A PRO
- Part number: B550-A PRO
- Price (US): currently unavailable
- Price last checked: 2026-08-05
- Rating: 4.6/5 from 1713 Amazon reviews
- Warranty: 3 years
- Product page: https://buildmypc.net/component-details/motherboard/msi-b550-a-pro/

## Specifications

| Spec | Value |
| --- | --- |
| Brand | MSI |
| Model | B550-A PRO |
| Socket Type | AM4 |
| Chipset | AMD B550 |
| Form Factor | ATX |
| Memory Type | 4 x DDR4 |
| Max Memory Support | 128 GB |

## Key Features

- Support for 3rd Gen AMD Ryzen processors and future AMD Ryzen processors with BIOS update.Audio ports (Rear) : Realtek ALC892/ALC897 Codec
- Supports dual channel DDR4 memory up to 128 GB (4400 MHz)
- Lightning Fast Game experience: PCIe 4.0, Lightning Gen 4 M.2 with M.2 Shield Frozr, AMD Turbo USB 3.2 GEN 2
- Core Boost technology combines optimized power circuit layouts and digital power regulation which allows for precise and steady current delivery to the CPU
- AUDIO BOOST rewards your ears with studio grade sound quality for immersive gaming experiences
- Premium Thermal Solution: Heatsink thermal pad rated for 7W/mk and PCB with 2oz thickened copper
- Flash BIOS Button lets users flash the BIOS even without a CPU or memory
- Powerful Design: Core Boost, Digital PWM IC, 2oz Thickened Copper PCB, Creator Genie, DDR4 Boost

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