The ASUS Prime B550M-A WiFi II is a Micro-ATX motherboard based on the B550 chipset with an AM4 socket. It supports up to 128GB of DDR4 memory across 4 DIMM slots, and offers 2 M.2 slots for NVMe SSD storage. This guide covers compatible RAM and SSD upgrades with our top recommendations.
ASUS Prime B550M-A WiFi II Specifications
| Motherboard | ASUS Prime B550M-A WiFi II |
| Brand | ASUS |
| Chipset | B550 |
| Socket | AM4 |
| Form Factor | Micro-ATX |
| Memory Type | DDR4 |
| Max Memory | 128GB |
| DIMM Slots | 4 |
| M.2 Slots | 2 |
| Release Year | 2021 |
Compatible RAM for ASUS Prime B550M-A WiFi II
The ASUS Prime B550M-A WiFi II supports DDR4 memory modules. With 4 DIMM slots, the maximum supported capacity is 128GB. For optimal performance, install memory in matched pairs across the same-coloured slots to enable dual-channel mode.
Recommended RAM Upgrades
| Configuration | Module | Buy |
|---|---|---|
| 16GB (2x8GB) | Corsair Vengeance LPX DDR4-3200 2x8GB | Check Price |
| 32GB (2x16GB) | Corsair Vengeance LPX DDR4-3200 2x16GB | Check Price |
| 64GB (2x32GB) | Corsair Vengeance LPX DDR4-3200 2x32GB | Check Price |
| 128GB (4x32GB) | Corsair Vengeance LPX DDR4-3200 4x32GB | Check Price |
Compatible SSD Storage for ASUS Prime B550M-A WiFi II
The ASUS Prime B550M-A WiFi II features 2 M.2 slots for NVMe SSD storage. These support PCIe 3.0/4.0 x4 NVMe drives.
Recommended SSD Upgrades
| Capacity | Drive | Buy |
|---|---|---|
| 500GB NVMe | Samsung 980 Pro 500GB PCIe 4.0 | Check Price |
| 1TB NVMe | Samsung 980 Pro 1TB PCIe 4.0 | Check Price |
| 2TB NVMe | Samsung 970 EVO Plus 2TB | Check Price |
Upgrade Tips for ASUS Prime B550M-A WiFi II
- Check QVL: ASUS publishes a Qualified Vendor List (QVL) for this motherboard — check compatible modules before purchasing.
- Enable XMP/EXPO: After installing new RAM, enter BIOS and enable XMP to run memory at its rated speed.
- Matched pairs: Always install RAM in matched pairs for dual-channel performance.
- M.2 heatsink: Use the included M.2 heatsink or an aftermarket one to prevent thermal throttling on NVMe drives.
- BIOS update: Update to the latest BIOS before installing new memory, especially for newer RAM modules.
Frequently Asked Questions
What RAM is compatible with the ASUS Prime B550M-A WiFi II?
The ASUS Prime B550M-A WiFi II supports DDR4 memory, with a maximum of 128GB across 4 DIMM slots.
How many M.2 slots does the ASUS Prime B550M-A WiFi II have?
The ASUS Prime B550M-A WiFi II has 2 M.2 slots for NVMe SSD storage.
What is the maximum RAM for the ASUS Prime B550M-A WiFi II?
The maximum supported memory is 128GB using 4 DIMM slots.
Does the ASUS Prime B550M-A WiFi II support DDR5?
No, the ASUS Prime B550M-A WiFi II uses DDR4 memory modules.
Related ASUS Upgrade Guides
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- ASUS Upgrade Guide
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