Orbita MB-3991 SE Z790 Micro-ATX Wi-Fi 6E Motherboard
Motherboards · Orbita · SKU MB3991-SE · Released 2023 · Updated 2026-10-20
Key facts
| Benchmark index | 4,696 (Motherboards scale) |
|---|---|
| Category rank | #7,057 |
| Street price | $479 |
| Power | 45 W |
| Performance per dollar | 9.80 |
| Released | 2023 |
Specifications
| Brand | Orbita |
|---|---|
| Model | Orbita MB-3991 SE |
| Socket | LGA1700 |
| Chipset | Z790 |
| Form factor | Micro-ATX |
| Memory | 4× DDR5 DIMM, up to 192 GB |
| Max memory speed | DDR5-7200+ (OC) |
| Primary x16 slot | PCIe 5.0 x16 |
| M.2 slots | 3 total, 1× PCIe 5.0 x4 |
| Rear USB-C | 1× USB 3.2 Gen 2x2 20Gbps (Type-C) |
| Ethernet | 2.5GbE |
| Wireless | Wi-Fi 6E (802.11ax, 6 GHz) + Bluetooth 5.3 |
| Overclocking | CPU + memory |
| VRM | 20+2+2 phases, 90 A stages |
| BIOS | Dual UEFI, BIOS flashback button |
Related guides
PCIe Lanes ExplainedM.2 SSD Sizes and KeysIntel LGA1700 SocketDDR5 Memory ExplainedPCIe 5.0 ExplainedWi-Fi 6E Explained
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Cite this page: Hardware Spec Index, “Orbita MB-3991 SE Z790 Micro-ATX Wi-Fi 6E Motherboard”, https://vextor7.com/item/10040239 (accessed 2026-10-20).