Quick Summary
ASRock B550M Phantom Gaming 4 is a motherboard identified by model 90-MXBE90-A0UAYZ. It supports AMD AM4 Socket Ryzen 3000, 3000 G-Series, 4000 G-Series, 5000 and 5000 G-Series Desktop Processors, and it supports DDR4 4733+ (OC).
The board also lists an 8 power phase design, Digi Power, one PCIe 4.0 x16 slot, one PCIe 3.0 x16 slot, one PCIe 3.0 x1 slot, and AMD CrossFireX support.
Who It Is Best For
This motherboard suits buyers building or upgrading around the stated AMD AM4 Socket processor range and those checking for the listed DDR4 and PCIe support before ordering. The model number is important if you are matching a specific board variant.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Product | ASRock B550M Phantom Gaming 4, model 90-MXBE90-A0UAYZ. |
| Processor support | Supports AMD AM4 Socket Ryzen 3000, 3000 G-Series, 4000 G-Series, 5000 and 5000 G-Series Desktop Processors, so processor matching is an important pre-purchase check. |
| Memory support | Supports DDR4 4733+ (OC), which is a key specification to compare with your planned memory choice. |
| Expansion slots | 1 x PCIe 4.0 x16, 1 x PCIe 3.0 x16, and 1 x PCIe 3.0 x1 are listed for expansion planning. |
| Power design | 8 power phase design with Digi Power. |
| Multi-GPU support | Supports AMD CrossFireX. |
What To Know Before You Buy
Check that your processor matches the listed AMD AM4 Socket support before choosing this board. Confirm that your memory choice aligns with the stated DDR4 4733+ (OC) support, and review the available PCIe slot layout against the expansion cards you plan to use. The model number 90-MXBE90-A0UAYZ should also be matched carefully if you are replacing an existing board or ordering a specific variant.
Common Buyer Questions
Which processors does it support?
It supports AMD AM4 Socket Ryzen 3000, 3000 G-Series, 4000 G-Series, 5000 and 5000 G-Series Desktop Processors.
What memory support is listed?
DDR4 4733+ (OC) is stated, so your RAM choice should be checked against that specification.
What expansion slots are available?
The listed slots are 1 x PCIe 4.0 x16, 1 x PCIe 3.0 x16, and 1 x PCIe 3.0 x1.
Does it support multi-GPU?
AMD CrossFireX support is listed.
Final Buying View
ASRock B550M Phantom Gaming 4 is a motherboard for buyers who need the stated AM4 processor support, DDR4 memory compatibility, and the listed PCIe slot layout. Match the processor, memory, and board model number carefully before ordering.
