Orbita MB-2839 Prime B550 ATX Motherboard
Motherboards · Orbita · SKU MB2839-PRIME · Released 2021 · Updated 2026-10-23
Key facts
| Benchmark index | 1,840 (Motherboards scale) |
|---|---|
| Category rank | #8,639 |
| Street price | $79 |
| Power | 19 W |
| Performance per dollar | 23.29 |
| Released | 2021 |
Specifications
| Brand | Orbita |
|---|---|
| Model | Orbita MB-2839 Prime |
| Socket | AM4 |
| Chipset | B550 |
| Form factor | 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 | 2.5GbE |
| Wireless | None |
| Overclocking | CPU + memory |
| VRM | 11+1+1 phases, 60 A stages |
| BIOS | UEFI |
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Cite this page: Hardware Spec Index, “Orbita MB-2839 Prime B550 ATX Motherboard”, https://vextor7.com/item/63310829 (accessed 2026-10-23).