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Choose the ASRock B450M PRO4 if you want room to expand. It has four DDR4 slots (up to 128GB), two M.2 sockets and a second full-length expansion slot. The MSI B350M Gaming Pro is a sensible lower-cost option when two memory slots, one M.2 drive and its available PCIe x1 slots are enough. For either used board, verify the exact revision, installed BIOS and Ryzen 3 2200G support before paying; specifications alone cannot confirm that a particular board will POST.
Compatibility and BIOS come first
Both boards use the AM4 socket and are described by their manufacturers as supporting Ryzen processors. That does not guarantee that every second-hand sample will start with a Ryzen 3 2200G (a Raven Ridge APU). The installed firmware, board revision and the manufacturer’s CPU-support list determine compatibility.
- Ask for a clear photo of the model and revision markings on the board.
- Check that revision against the exact MSI or ASRock CPU-support page and BIOS history.
- Ask the seller which BIOS version is installed and whether the board has been tested with an AM4 processor.
- If an update is required, follow the model-specific procedure. A board that cannot boot the 2200G may require a supported older CPU or a repair shop for the update.
Do not assume either board provides BIOS Flashback. ASRock’s BIOS notice lists B450M Pro4 version 10.62 dated September 24, 2026, and warns: “ASRock do NOT recommend updating this BIOS if you are going to use Pinnacle, Raven or Summit Ridge CPU on your system.” Because the 2200G is Raven Ridge, read the complete release notes for the BIOS currently installed instead of flashing to the newest file blindly: ASRock BIOS support.
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| Decision area | MSI B350M Gaming Pro | ASRock B450M PRO4 | Practical effect |
|---|---|---|---|
| Socket, chipset and size | AM4, B350, micro-ATX | AM4, B450, micro-ATX | Both fit a micro-ATX-compatible case; confirm CPU support and firmware. |
| Memory | 2 DDR4 DIMM slots, up to 32GB | 4 DDR4 DIMM slots, up to 128GB | ASRock allows more capacity and easier future upgrades. |
| Storage connectors | 1 M.2, 4 SATA | 1 PCIe M.2, 1 SATA M.2, 4 SATA | ASRock offers two M.2 sockets, with a lane-sharing limitation. |
| Expansion slots | 1 PCIe 3.0 x16, 2 PCIe 2.0 x1 | 1 PCIe 3.0 x16, 1 PCIe 2.0 x16-length at x4 for Ryzen CPUs, 1 PCIe 2.0 x1 | ASRock has another long slot, but it is electrically x4, not x16. |
| Display outputs | VGA, DVI-D and HDMI listed; qualification needs checking | D-Sub, DVI-D and HDMI; integrated Radeon Vega graphics listed for Ryzen APUs | Useful for a 2200G without a graphics card, subject to the manual and CPU support. |
| Rear USB listed by the manufacturers | Six USB 3.1 Gen1 and six USB 2.0 total in the MSI datasheet | Two rear USB 3.1 Gen2 (Type-A and Type-C), four rear Gen1 and two USB 2.0 | ASRock supplies faster rear connectors, including USB-C; verify whether totals include headers. |
Sources: MSI datasheet, MSI specifications, ASRock specifications and ASRock detailed specifications.
#1 Best Overall
- AMD Socket AM4: Ready to support AMD Ryzen 5000 / Ryzen 4000 / Ryzen 3000 Series processors
- Enhanced Power Solution: Digital twin 10 plus3 phases VRM solution with premium chokes and capacitors for steady power delivery.
- Advanced Thermal Armor: Enlarged VRM heatsinks layered with 5 W/mk thermal pads for better heat dissipation. Pre-Installed I/O Armor for quicker PC DIY assembly.
- Boost Your Memory Performance: Compatible with DDR4 memory and supports 4 x DIMMs with AMD EXPO Memory Module Support.
- Comprehensive Connectivity: WIFI 6, PCIe 4.0, 2x M.2 Slots, 1GbE LAN, USB 3.2 Gen 2, USB 3.2 Gen 1 Type-C
Memory: the biggest upgrade difference
MSI: adequate for a fixed, modest build
The MSI has two DDR4 slots and a manufacturer-listed maximum of 32GB. Install a matched two-module kit if you want dual-channel operation; filling both slots leaves no empty slot for a simple later addition, so replacing the kit may be necessary.
ASRock: four slots and a higher ceiling
The ASRock provides four DDR4 slots and lists support up to 128GB. Two modules can run in dual channel now, while two open slots preserve an easier upgrade path. Actual supported speed depends on the 2200G, the modules and the slot configuration. Advertised overclocked memory rates are not guaranteed plug-and-play speeds.
Storage: count sockets and check protocols
MSI’s single M.2 connector
MSI specifies one M.2 socket alongside four SATA ports. Confirm that the SSD’s keying and protocol match the socket before ordering; an M.2 shape alone does not prove compatibility.
Rank #2
- AMD Socket AM4: Ready to support AMD Ryzen 5000/4000/3000 Series Processors
- Enhanced Power Solution: Digital 3+3 VRM Design and premium chokes and capacitors for steady power delivery.
- Advanced Thermal Armor: Chipset heatsinks for better heat dissipation.
- Boost Your Memory: Compatible with DDR4 and supports 4 DIMMS with Extreme Memory Profile support.
- Comprehensive Connectivity: 1x Ultra Durable PCIe 4.0 x16 slot, 1x PCIe 4.0 M.2 slot, 1x PCIe 3.0 M.2 slot, 4x USB 3.2 Gen 1 ports for hassle-free setup.
ASRock’s two M.2 sockets
ASRock lists a PCIe Gen3 x4 Ultra M.2 socket and a second SATA M.2 socket, plus four SATA ports. The M2_2 socket shares lanes with SATA3_3: using one disables the other. Plan the drive layout before connecting a SATA device, and verify whether your chosen SSD is PCIe/NVMe or SATA: ASRock’s detailed storage specification.
Expansion, graphics and USB
The MSI provides one primary PCIe 3.0 x16 slot for a graphics card and two PCIe 2.0 x1 slots for smaller cards. The ASRock adds a second full-length slot, but with a Ryzen processor it operates at PCIe 2.0 x4. It is useful for selected capture, networking or storage cards, not equivalent to a second x16 slot for a high-end multi-GPU setup.
Both boards list VGA, DVI-D and HDMI outputs. ASRock explicitly documents integrated Radeon Vega graphics for Ryzen APUs, which aligns with using the 2200G’s integrated graphics. MSI’s detailed graphics-output section attaches a processor qualification referring to 7th Gen A-series/Athlon processors rather than clearly confirming every Ryzen APU. If you intend to run without a discrete card, check the board manual and support page for the exact model and BIOS before relying on those outputs.
Rank #3
- AMD AM4 Socket: Compatible with AMD Ryzen 1-5th generation CPUs, Ryzen 1000-5000 Series. (Eg. Ryzen 5 5600X、Ryzen 9 3950X、Ryzen 7 5800X, Ryzen 7 3700X etc.)
- Maximum 64G DDR4 Memory: 2 memory slots support dual-channel DDR4 memory up to 64GB, 2133MHz/2400MHz/2666MHz/2800MHz/3000MHz/3200MHz/3600MHz
- Outstanding Gaming Connectivity: This AM4 motherboard is equipped with HDMI-compatible and VGA high-definition multimedia transmission interfaces, and Gigabit Ethernet, NVME/NGFF M.2, PCI-E 3.0 x16, USB 3.0, SATA 3.0
- Stable power supply: 24pin+4pin power interface and 4+2 phase power supply, this B450 Motherboard uses an all-solid capacitor design to ensure the stable operation of the motherboard's accessories. (Please use at least a 500W brand power supply)
- Package Includes: 1*motherboard, 1*SATA cable, 1*I/0 shield. IMPORTANT: The package does not contain a user manual, and the motherboard does not include a CR2032 battery, please purchase one yourself
ASRock’s rear USB arrangement includes two Gen2 ports (Type-A and Type-C), while MSI’s datasheet lists a larger total of Gen1 and USB 2.0 ports. Compare the physical rear connectors and your speed requirements; manufacturer totals can include internal headers.
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Which board fits your build?
Pick the ASRock B450M PRO4 when:
- You expect to exceed 32GB of RAM or want four DIMM slots for painless expansion.
- You want two M.2 sockets and understand the M2_2/SATA3_3 lane-sharing rule.
- You need USB 3.1 Gen2, including a rear Type-C connector.
- A second long PCIe slot is useful and x4 electrical bandwidth is sufficient.
- The ASRock sample has a verified BIOS and is in better condition or similarly priced.
Pick the MSI B350M Gaming Pro when:
- The board is substantially cheaper or its condition is demonstrably better.
- Your plan is 16–32GB of RAM, one M.2 drive and a single graphics card.
- You specifically need two PCIe x1 slots.
- You have confirmed a BIOS that supports the 2200G, or have a reliable way to update it.
Neither manufacturer’s specification establishes current used-market stock, seller reliability, condition, or a performance advantage with this exact APU. Treat price and condition as local variables rather than assuming the B450 chipset automatically makes the ASRock the better value.
Used-board inspection checklist
- Confirm the exact model name, revision and BIOS version with photos or a boot-screen image.
- Inspect the AM4 socket, DIMM latches, M.2 retaining screw, PCIe slots and USB connectors for damage.
- Ask whether the board POSTs, detects all memory slots and displays video from the intended output.
- Check that the rear I/O shield, M.2 screw and required heatsinks are included.
- Match the power supply’s CPU connector and the case’s micro-ATX mounting pattern.
- Agree on a return option when the seller cannot demonstrate operation with a compatible processor.
Bottom line
On published specifications, the ASRock B450M PRO4 is the more expandable platform for a Ryzen 3 2200G: four memory slots, a 128GB listed ceiling, two M.2 sockets, USB Gen2 Type-C and an additional long slot. The MSI B350M Gaming Pro remains a reasonable choice for a basic, inexpensive build if its two-slot, 32GB memory limit and single M.2 connector meet your needs. The deciding factor for either used board is verified BIOS compatibility and physical condition, not the chipset name alone.
Quick Recap
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