Hardware Spec Index

Halcyra MB-8666 Prime X570 ATX Wi-Fi 6 Motherboard

Motherboards · Halcyra · SKU MB8666-PRIME · Released 2019 · Updated 2026-10-21

Key facts

Benchmark index4,751 (Motherboards scale)
Category rank#48,126
Street price$509
Power45 W
Performance per dollar9.33
Released2019

Specifications

BrandHalcyra
ModelHalcyra MB-8666 Prime
SocketAM4
ChipsetX570
Form factorATX
Memory2× DDR4 DIMM, up to 64 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)
Ethernet1GbE
WirelessWi-Fi 6 (802.11ax) + Bluetooth 5.2
OverclockingCPU + memory
VRM21+2+2 phases, 90 A stages
BIOSDual UEFI, BIOS flashback button

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Cite this page: Hardware Spec Index, “Halcyra MB-8666 Prime X570 ATX Wi-Fi 6 Motherboard”, https://vextor7.com/item/5485410 (accessed 2026-10-21).