Zephyra MB-9991 Plus X570 E-ATX Wi-Fi 6 Motherboard
Motherboards · Zephyra · SKU MB9991-PLUS · Released 2019 · Updated 2026-10-22
Key facts
| Benchmark index | 4,637 (Motherboards scale) |
|---|---|
| Category rank | #26,840 |
| Street price | $349 |
| Power | 41 W |
| Performance per dollar | 13.29 |
| Released | 2019 |
Specifications
| Brand | Zephyra |
|---|---|
| Model | Zephyra MB-9991 Plus |
| Socket | AM4 |
| Chipset | X570 |
| Form factor | E-ATX |
| Memory | 4× DDR4 DIMM, up to 128 GB |
| Max memory speed | DDR4-4800+ (OC) |
| Primary x16 slot | PCIe 4.0 x16 |
| M.2 slots | 3 total |
| Rear USB-C | 1× USB 3.2 Gen 2 10Gbps (Type-C) |
| Ethernet | 1GbE |
| Wireless | Wi-Fi 6 (802.11ax) + Bluetooth 5.2 |
| Overclocking | CPU + memory |
| VRM | 19+2+1 phases, 80 A stages |
| BIOS | Dual UEFI, BIOS flashback button |
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Cite this page: Hardware Spec Index, “Zephyra MB-9991 Plus X570 E-ATX Wi-Fi 6 Motherboard”, https://vextor7.com/item/91319586 (accessed 2026-10-22).