Hardware Spec Index

Halcyra MB-6677 Ultra B550 Micro-ATX Motherboard

Motherboards · Halcyra · SKU MB6677-ULTRA · Released 2021 · Updated 2026-10-26

Key facts

Benchmark index2,233 (Motherboards scale)
Category rank#37,394
Street price$89
Power21 W
Performance per dollar25.09
Released2021

Specifications

BrandHalcyra
ModelHalcyra MB-6677 Ultra
SocketAM4
ChipsetB550
Form factorMicro-ATX
Memory4× DDR4 DIMM, up to 128 GB
Max memory speedDDR4-4800+ (OC)
Primary x16 slotPCIe 4.0 x16
M.2 slots3 total
Rear USB-C1× USB 3.2 Gen 2 10Gbps (Type-C)
Ethernet2.5GbE
WirelessNone
OverclockingCPU + memory
VRM12+1+1 phases, 60 A stages
BIOSUEFI

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Cite this page: Hardware Spec Index, “Halcyra MB-6677 Ultra B550 Micro-ATX Motherboard”, https://vextor7.com/item/6502750 (accessed 2026-10-26).