Hardware Spec Index

Kyndral MB-5639 XT B860 ATX Wi-Fi 6E Motherboard

Motherboards · Kyndral · SKU MB5639-XT · Released 2025 · Updated 2026-10-20

Key facts

Benchmark index3,351 (Motherboards scale)
Category rank#40,919
Street price$199
Power32 W
Performance per dollar16.84
Released2025

Specifications

BrandKyndral
ModelKyndral MB-5639 XT
SocketLGA1851
ChipsetB860
Form factorATX
Memory4× DDR5 DIMM, up to 256 GB
Max memory speedDDR5-9000+ (OC, CUDIMM)
Primary x16 slotPCIe 5.0 x16
M.2 slots2 total, 1× PCIe 5.0 x4
Rear USB-C1× USB 3.2 Gen 2x2 20Gbps (Type-C)
Ethernet2.5GbE
WirelessWi-Fi 6E (802.11ax, 6 GHz) + Bluetooth 5.3
OverclockingMemory only
VRM16+1+1 phases, 60 A stages
BIOSDual UEFI, BIOS flashback button

Related guides

PCIe Lanes ExplainedM.2 SSD Sizes and KeysIntel LGA1851 SocketIntel 800 Series ChipsetsDDR5 Memory ExplainedPCIe 5.0 Explained

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Cite this page: Hardware Spec Index, “Kyndral MB-5639 XT B860 ATX Wi-Fi 6E Motherboard”, https://vextor7.com/item/3851001 (accessed 2026-10-20).