Kyndral MB-8421 Prime B650 Micro-ATX Wi-Fi 7 Motherboard
Motherboards · Kyndral · SKU MB8421-PRIME · Released 2024 · Updated 2026-10-19
Key facts
| Benchmark index | 3,620 (Motherboards scale) |
|---|---|
| Category rank | #41,694 |
| Street price | $259 |
| Power | 35 W |
| Performance per dollar | 13.98 |
| Released | 2024 |
Specifications
| Brand | Kyndral |
|---|---|
| Model | Kyndral MB-8421 Prime |
| Socket | AM5 |
| Chipset | B650 |
| Form factor | Micro-ATX |
| Memory | 4× DDR5 DIMM, up to 256 GB |
| Max memory speed | DDR5-6400+ (OC) |
| Primary x16 slot | PCIe 4.0 x16 |
| M.2 slots | 5 total, 1× PCIe 5.0 x4 |
| Rear USB-C | 1× USB 3.2 Gen 2x2 20Gbps (Type-C) |
| Ethernet | 2.5GbE |
| Wireless | Wi-Fi 7 (802.11be, 320 MHz) + Bluetooth 5.4 |
| Overclocking | CPU + memory |
| VRM | 17+2+1 phases, 80 A stages |
| BIOS | Dual UEFI, BIOS flashback button |
Related guides
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Cite this page: Hardware Spec Index, “Kyndral MB-8421 Prime B650 Micro-ATX Wi-Fi 7 Motherboard”, https://vextor7.com/item/6422344 (accessed 2026-10-19).