Hardware Spec Index

Halcyra MB-7842 Prime X870E ATX Wi-Fi 7 Motherboard

Motherboards · Halcyra · SKU MB7842-PRIME · Released 2024 · Updated 2026-10-25

Key facts

Benchmark index5,548 (Motherboards scale)
Category rank#9,316
Street price$699
Power53 W
Performance per dollar7.94
Released2024

Specifications

BrandHalcyra
ModelHalcyra MB-7842 Prime
SocketAM5
ChipsetX870E
Form factorATX
Memory4× DDR5 DIMM, up to 256 GB
Max memory speedDDR5-6400+ (OC)
Primary x16 slotPCIe 5.0 x16
M.2 slots5 total, 2× PCIe 5.0 x4
Rear USB-C2× USB4 40Gbps (Type-C)
Ethernet10GbE + 2.5GbE
WirelessWi-Fi 7 (802.11be, 320 MHz) + Bluetooth 5.4
OverclockingCPU + memory
VRM23+2+2 phases, 110 A stages
BIOSDual UEFI, BIOS flashback button

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Cite this page: Hardware Spec Index, “Halcyra MB-7842 Prime X870E ATX Wi-Fi 7 Motherboard”, https://vextor7.com/item/21919392 (accessed 2026-10-25).