Asus Prime B550M-A Wifi II upgrades
Micro-ATX board with no soldered RAM or CPU; all memory and the CPU are socketed and upgradable. Actual drive bays and card fit depend on the case.
- 4x DDR4 DIMM (dual channel), max 128 GB: 4 × DDR4 DIMM · up to 128 GB total · 4866 MT/s
- 2x M.2 (NVMe/SATA) + 4x SATA 6 Gb/s ports: 6 × SSD / HDD M.2 2242 / M.2 2260 / M.2 2280 / M.2 22110 (NVMe / SATA)
- Socket AM4 (1 CPU, Ryzen 3000/4000G/5000/5000G): AM4 · Ryzen 3000, Ryzen 5000, Ryzen 5000, Ryzen 5000
Slot map
4x DDR4 DIMM (dual channel), max 128 GB 4 × DDR4 DIMM · up to 128 GB total · 4866 MT/s
DDR4-4866 is OC/XMP; JEDEC default 3200 and 4-DIMM loads drop achievable clocks. Use slots A2/B2 for two sticks. Unbuffered only; unbuffered ECC works only depending on CPU. All 4 slots filled may need extra RAM cooling.
| $/GB | Price | Capacity | Product | Condition | Store | Link |
|---|---|---|---|---|---|---|
| $2.75 | $21.99 | 8 GB | Micron 8GB DDR4-2400 UDIMM DDR4-2400 DIMM | Used | eBay US +2 | View deal Amazon Price alert |
| $4.81 | $77.00 | 2 × 8 GB | Corsair Vengeance LPX 16GB Kit (2 × 8GB) DDR4-3200 CL16 DDR4-3200 CL16 DIMM | Used | eBay US +2 | View deal Amazon Price alert |
| $5.31 | $170.00 | 2 × 16 GB | Corsair Vengeance LPX 32GB Kit (2 × 16GB) DDR4-3200 CL16 DDR4-3200 CL16 DIMM | Used | eBay US +2 | View deal Amazon Price alert |
| $5.86 | $375.00 | 2 × 32 GB | Crucial 64GB Kit (2 × 32GB) DDR4‑3200 SO‑DIMM (260‑pin) DDR4-3200 CL22 DIMM | Used | eBay US +1 | View deal Amazon Price alert |
| $6.12 | $195.99 | 2 × 16 GB | Corsair Vengeance LPX 32GB Kit (2 × 16GB) DDR4-3200 CL16 DDR4-3200 CL16 DIMM | New | eBay US +2 | View deal Amazon Price alert |
| $7.03 | $450.00 | 2 × 32 GB | G.Skill Ripjaws V 64GB Kit (2 × 32GB) DDR4-3600 CL18 DDR4-3600 CL18 DIMM | Used | eBay US | View deal Amazon Price alert |
| $7.27 | $464.99 | 2 × 32 GB | Crucial 64GB Kit (2 × 32GB) DDR4‑3200 SO‑DIMM (260‑pin) DDR4-3200 CL22 DIMM | New | eBay US +1 | View deal Amazon Price alert |
| $7.81 | $500.00 | 2 × 32 GB | G.Skill Ripjaws V 64GB Kit (2 × 32GB) DDR4-3600 CL18 DDR4-3600 CL18 DIMM | New | eBay US +1 | View deal Amazon Price alert |
| $8.75 | $560.00 | 2 × 32 GB | Crucial Pro 64GB Kit (2 × 32GB) DDR4‑3200 UDIMM DDR4-3200 CL22 DIMM | New | eBay US +2 | View deal Amazon Price alert |
| $9.14 | $584.95 | 2 × 32 GB | Crucial Pro 64GB Kit (2 × 32GB) DDR4‑3200 UDIMM DDR4-3200 CL22 DIMM | Used | eBay US +1 | View deal Amazon Price alert |
All compatible memory with filters → · Compare prices: DDR4 desktop RAM (DIMM)
2x M.2 (NVMe/SATA) + 4x SATA 6 Gb/s ports 6 × SSD / HDD M.2 2242 / M.2 2260 / M.2 2280 / M.2 22110 (NVMe / SATA)
M.2_1: 2242-22110, PCIe 4.0 x4 with Ryzen 3000/5000, Gen3 with APUs. M.2_2: 2242-2280, PCIe 3.0 x4. Both accept SATA M.2; a SATA drive in M.2_2 may disable a SATA port. No drive bays on board - case determines 2.5"/3.5" fit.
| $/TB | Price | Capacity | Product | Condition | Store | Link |
|---|---|---|---|---|---|---|
| $75.00 | $299.99 | 4 TB | Crucial P3 Plus 4TB M.2 2280 NVMe M.2 2280 SSD · NVMe Gen4 | Used | eBay US +2 | View deal Amazon Price alert |
| $97.56 | $49.95 | 512 GB | SC401 512GB M.2 2280 SATA SSD M.2 2280 SSD · SATA | Used | eBay US +2 | View deal Amazon Price alert |
| $97.64 | $49.99 | 512 GB | XG7 512GB M.2 2280 NVMe Gen4 SSD (Lenovo) M.2 2280 SSD · NVMe Gen4 | Used | eBay US +2 | View deal Amazon Price alert |
| $98.75 | $395.00 | 4 TB | Crucial P3 Plus 4TB M.2 2280 NVMe M.2 2280 SSD · NVMe Gen4 | New | eBay US +2 | View deal Amazon Price alert |
| $101.52 | $25.99 | 256 GB | Samsung PM981a 256GB M.2 2280 NVMe SSD (Lenovo FRU) M.2 2280 SSD · NVMe | Used | eBay US +2 | View deal Amazon Price alert |
| $105.00 | $209.99 | 2 TB | Crucial P3 Plus 2TB M.2 2280 NVMe M.2 2280 SSD · NVMe Gen4 | Used | eBay US +2 | View deal Amazon Price alert |
| $105.00 | $419.99 | 4 TB | Kingston FURY Renegade 4TB (no heatsink) M.2 2280 SSD · NVMe | Used | eBay US +1 | View deal Amazon Price alert |
| $107.40 | $54.99 | 512 GB | SC401 512GB M.2 2280 SATA SSD M.2 2280 SSD · SATA | Refurbished | eBay US | View deal Amazon Price alert |
| $107.40 | $54.99 | 512 GB | PM981A 512GB M.2 2280 NVMe SSD (Lenovo FRU 00UP735) M.2 2280 SSD · NVMe | Used | eBay US +2 | View deal Amazon Price alert |
| $109.99 | $109.99 | 1 TB | Crucial P3 1TB M.2 2280 NVMe (Gen3) M.2 2280 SSD · NVMe Gen3 | Used | eBay US +2 | View deal Amazon Price alert |
All compatible storage with filters → · Compare prices: NVMe M.2 2280 SSD
Socket AM4 (1 CPU, Ryzen 3000/4000G/5000/5000G) AM4 · Ryzen 3000, Ryzen 5000, Ryzen 5000, Ryzen 5000
Supports Ryzen 3000 (non-G), 5000, 5000 G and 4000 G. 3000G/2000G APUs, Ryzen 2000/1000 and standard 4000 non-G are not supported. Older boards may need a BIOS update for Ryzen 5000. No official TDP limit; 105 W parts work but need good airflow.
| Price | Cores | Product | Condition | Store | Link |
|---|---|---|---|---|---|
| $119.99 | 6 cores / 12 threads | AMD Ryzen 5 5600G AM4 · 3.9–4.4 GHz · 65 W · iGPU · cooler included | Used | eBay US +2 | View deal Amazon Price alert |
| $127.29 | 6 cores / 12 threads | AMD Ryzen 5 5600X AM4 · 3.7–4.6 GHz · 65 W · cooler included | Used | eBay US +2 | View deal Amazon Price alert |
| $128.24 | 6 cores / 12 threads | AMD Ryzen 5 5600 AM4 · 3.5–4.4 GHz · 65 W · cooler included | Used | eBay US | View deal Amazon Price alert |
| $169.00 | 6 cores / 12 threads | AMD Ryzen 5 5600G AM4 · 3.9–4.4 GHz · 65 W · iGPU · cooler included | New | eBay US | View deal Amazon Price alert |
| $305.00 | 8 cores / 16 threads | AMD Ryzen 7 5800X3D AM4 · 3.4–4.5 GHz · 105 W | Used | eBay US +2 | View deal Amazon Price alert |
| $319.00 | 8 cores / 16 threads | AMD Ryzen 7 5800X3D AM4 · 3.4–4.5 GHz · 105 W | New | eBay US +2 | View deal Amazon Price alert |
| $319.80 | 8 cores / 16 threads | AMD Ryzen 7 5700X3D AM4 · 3.0–4.1 GHz · 105 W | Used | eBay US +2 | View deal Amazon Price alert |
| $359.89 | 8 cores / 16 threads | AMD Ryzen 7 5700X3D AM4 · 3.0–4.1 GHz · 105 W | New | eBay US +2 | View deal Amazon Price alert |
All compatible storage with filters → · Compare prices: AM4 processors