Hardware Spec Index

Halcyra MB-8640 XT B860 ATX Wi-Fi 6E Motherboard

Motherboards · Halcyra · SKU MB8640-XT · Released 2025 · Updated 2026-10-23

Key facts

Benchmark index3,373 (Motherboards scale)
Category rank#49,562
Street price$249
Power33 W
Performance per dollar13.55
Released2025

Specifications

BrandHalcyra
ModelHalcyra MB-8640 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 slots4 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, 80 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, “Halcyra MB-8640 XT B860 ATX Wi-Fi 6E Motherboard”, https://vextor7.com/item/1044508 (accessed 2026-10-23).