This article covers MSI ProSeries AMD Ryzen 第1世代および第2世代 AM4 M.2 USB 3 DDR4 D-Sub DVI HDMI Micro-ATX マザーボード (B450M PRO-M2 Max) (B450MPM2MAX).

Overview

The MSI B450M PRO-M2 Max is a Micro-ATX motherboard built on the AMD B450 chipset, designed for budget-conscious builders who need a reliable foundation for an AM4-based system. It supports Ryzen 1st, 2nd, and 3rd generation processors as well as Athlon models with Radeon graphics, making it a versatile choice for entry-level to mid-range PCs. With two DDR4 memory slots supporting up to 32GB at speeds up to 3466 MHz (OC), a single reinforced PCIe 3.0 x16 slot, and one M.2 slot for NVMe or SATA SSDs, the B450M PRO-M2 Max covers the essentials without unnecessary frills. Audio Boost technology delivers cleaner sound, while the steel-armored PCIe slot protects heavier graphics cards from bending. This board also provides legacy video outputs (D-Sub, DVI, HDMI) for APU builds, and includes four SATA 6Gbps ports for traditional storage. It’s a no-nonsense choice for anyone building a compact, cost-effective desktop.

Compatibility Guide

The AM4 socket is compatible with a broad range of AMD CPUs, including Ryzen 1000/2000/3000 series (Summit Ridge, Pinnacle Ridge, Matisse) and Ryzen/Athlon with Radeon Vega Graphics. Some Ryzen 3000 CPUs may require a BIOS update; check the manufacturer’s CPU support list before purchase. Memory support covers DDR4 from 2133 up to 3466 MHz via overclocking. Only two DIMM slots are available, limiting maximum capacity to 32 GB (2x16GB). Dual-channel mode is supported. The board uses the Micro-ATX form factor (244mm x 244mm) and fits in most Micro-ATX cases. Expansion slots include one PCIe 3.0 x16 (steel-reinforced) and two PCIe 2.0 x1. For storage, you get four SATA 6Gbps ports and one M.2 slot supporting both PCIe 3.0 x4 NVMe and SATA SSDs. Power delivery requires a standard 24-pin ATX main connector and an 8-pin EPS12V CPU power connector. A 500W power supply is sufficient for typical builds with a 65–95W CPU and a mid-range GPU; for higher-end GPUs, aim for 600W or more.

Product Info

Launched in late 2019, the MSI B450M PRO-M2 Max originally retailed around ¥7,000–8,000 in Japan. Today, it’s mostly available through third-party sellers on marketplaces like , often at a premium. The board is firmly in the entry-level segment, trading expandability for simplicity and reliability. Key hardware includes the AMD B450 chipset, Realtek ALC887 audio codec, Realtek RTL8111H Gigabit LAN, and a single M.2 slot. The warranty period is typically 3 years for genuine retail units (check seller details).

Best Use Cases

First-time DIY PC builders on a tight budget: The B450M PRO-M2 Max provides all the essentials without wasting money on features you may never use. Pair it with a Ryzen 3 or 5 CPU and a modest GPU for a solid 1080p gaming or productivity machine. Office or home server builds: With an APU like the Ryzen 3 3200G, you can create a very low-power, quiet desktop for web browsing, document editing, or even a small file server. The integrated graphics handle 4K video playback without issue. HTPC or secondary PC: Its compact size and ample legacy video outputs make it suitable for a media center tucked inside a small case. Who should avoid this board? Users needing PCIe 4.0 support (Ryzen 5000 or newer) – consider a B550/A520 board instead. Anyone planning to install more than 32GB of RAM or multiple M.2 drives. Users who want extensive fan headers or RGB control – this board is minimal. ## Alternatives
Direct competitors include the ASRock B450M-HDV and Gigabyte B450M DS3H. The ASRock lacks an M.2 slot, while the Gigabyte offers a similar feature set but with a different audio solution. MSI’s own B450M Mortar Max costs more but adds four memory slots, two M.2 slots, and better VRM cooling, making it a better choice for future upgrades. If you need modern connectivity like USB 3.2 Gen 2 or Wi-Fi, this board is not the right fit. However, for a simple, reliable build where price is the top priority, the B450M PRO-M2 Max remains a sensible option.

Things to Consider

Availability is the biggest issue – this board is discontinued, so new-old-stock or used units are common. Check the seller’s reputation and warranty policy carefully, especially for international purchases. With only two RAM slots, upgrading later means replacing existing sticks, which may be inconvenient. The 32GB capacity cap might not be enough for heavy multitasking or future software demands. BIOS compatibility with Ryzen 3000 CPUs can be a gamble; some boards come with an older BIOS that won’t boot without an older CPU to update. If you don’t have access to a first-gen Ryzen, look for a board with “Ryzen 3000 Ready” labelling or buy from a retailer that offers BIOS updates. ## FAQ Q: Does this board support M.2 NVMe SSDs? A: Yes, the M.2 slot supports both PCIe 3.0 x4 NVMe and SATA SSDs. Note that using a SATA M.2 SSD may disable one SATA port. Q: Can

Product Disclosure (Amazon)

  • Manufacturer: MSI
  • Seller: 日興 福岡店
  • Fulfilled by: 日興 福岡店
  • ASIN: B07XH4SK17
  • Note: This article covers a manufacturer-made product based on Amazon listing details.