Zephyra MB-3900 Prime X870E ATX Wi-Fi 7 Motherboard
Motherboards · Zephyra · SKU MB3900-PRIME · Released 2025 · Updated 2026-10-20
Key facts
| Benchmark index | 4,291 (Motherboards scale) |
|---|---|
| Category rank | #22,053 |
| Street price | $379 |
| Power | 43 W |
| Performance per dollar | 11.32 |
| Released | 2025 |
Specifications
| Brand | Zephyra |
|---|---|
| Model | Zephyra MB-3900 Prime |
| Socket | AM5 |
| Chipset | X870E |
| Form factor | ATX |
| Memory | 4× DDR5 DIMM, up to 256 GB |
| Max memory speed | DDR5-8000+ (OC) |
| Primary x16 slot | PCIe 5.0 x16 |
| M.2 slots | 5 total, 2× PCIe 5.0 x4 |
| Rear USB-C | 2× USB4 40Gbps (Type-C) |
| Ethernet | 5GbE |
| Wireless | Wi-Fi 7 (802.11be, 320 MHz) + Bluetooth 5.4 |
| Overclocking | CPU + memory |
| VRM | 20+2+1 phases, 90 A stages |
| BIOS | Dual UEFI, BIOS flashback button |
Related guides
PCIe Lanes ExplainedM.2 SSD Sizes and KeysAMD AM5 SocketAMD AM5 Chipsets ComparedDDR5 Memory ExplainedPCIe 5.0 Explained
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Cite this page: Hardware Spec Index, “Zephyra MB-3900 Prime X870E ATX Wi-Fi 7 Motherboard”, https://vextor7.com/item/3373322 (accessed 2026-10-20).