Zephyra MB-8390 Plus X870 Micro-ATX Wi-Fi 7 Motherboard
Motherboards · Zephyra · SKU MB8390-PLUS · Released 2024 · Updated 2026-10-20
Key facts
| Benchmark index | 4,727 (Motherboards scale) |
|---|---|
| Category rank | #12,136 |
| Street price | $479 |
| Power | 45 W |
| Performance per dollar | 9.87 |
| Released | 2024 |
Specifications
| Brand | Zephyra |
|---|---|
| Model | Zephyra MB-8390 Plus |
| Socket | AM5 |
| Chipset | X870 |
| Form factor | Micro-ATX |
| Memory | 2× DDR5 DIMM, up to 128 GB |
| Max memory speed | DDR5-6400+ (OC) |
| Primary x16 slot | PCIe 5.0 x16 |
| M.2 slots | 2 total, 1× 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 | 21+2+2 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-8390 Plus X870 Micro-ATX Wi-Fi 7 Motherboard”, https://vextor7.com/item/3988708 (accessed 2026-10-20).