Hardware Spec Index

Halcyra MB-6646 Plus B850 ATX Wi-Fi 7 Motherboard

Motherboards · Halcyra · SKU MB6646-PLUS · Released 2025 · Updated 2026-10-21

Key facts

Benchmark index3,709 (Motherboards scale)
Category rank#47,661
Street price$309
Power37 W
Performance per dollar12.00
Released2025

Specifications

BrandHalcyra
ModelHalcyra MB-6646 Plus
SocketAM5
ChipsetB850
Form factorATX
Memory2× DDR5 DIMM, up to 128 GB
Max memory speedDDR5-8000+ (OC)
Primary x16 slotPCIe 4.0 x16
M.2 slots3 total, 1× PCIe 5.0 x4
Rear USB-C1× USB 3.2 Gen 2x2 20Gbps (Type-C)
Ethernet2.5GbE
WirelessWi-Fi 7 (802.11be, 320 MHz) + Bluetooth 5.4
OverclockingCPU + memory
VRM18+2+1 phases, 70 A stages
BIOSDual UEFI, BIOS flashback button

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Cite this page: Hardware Spec Index, “Halcyra MB-6646 Plus B850 ATX Wi-Fi 7 Motherboard”, https://vextor7.com/item/2431844 (accessed 2026-10-21).