Hardware Spec Index

Halcyra MB-8421 XT B850 ATX Motherboard

Motherboards · Halcyra · SKU MB8421-XT · Released 2025 · Updated 2026-10-21

Key facts

Benchmark index2,786 (Motherboards scale)
Category rank#24,592
Street price$139
Power26 W
Performance per dollar20.04
Released2025

Specifications

BrandHalcyra
ModelHalcyra MB-8421 XT
SocketAM5
ChipsetB850
Form factorATX
Memory4× DDR5 DIMM, up to 256 GB
Max memory speedDDR5-8000+ (OC)
Primary x16 slotPCIe 4.0 x16
M.2 slots2 total, 1× PCIe 5.0 x4
Rear USB-C1× USB 3.2 Gen 2 10Gbps (Type-C)
Ethernet2.5GbE
WirelessNone
OverclockingCPU + memory
VRM14+1+1 phases, 60 A stages
BIOSUEFI

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Cite this page: Hardware Spec Index, “Halcyra MB-8421 XT B850 ATX Motherboard”, https://vextor7.com/item/91781998 (accessed 2026-10-21).