Hardware Spec Index

Zephyra MB-8642 Ultra B850 E-ATX Wi-Fi 6E Motherboard

Motherboards · Zephyra · SKU MB8642-ULTRA · Released 2025 · Updated 2026-10-19

Key facts

Benchmark index2,976 (Motherboards scale)
Category rank#5,594
Street price$159
Power28 W
Performance per dollar18.72
Released2025

Specifications

BrandZephyra
ModelZephyra MB-8642 Ultra
SocketAM5
ChipsetB850
Form factorE-ATX
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
WirelessWi-Fi 6E (802.11ax, 6 GHz) + Bluetooth 5.3
OverclockingCPU + memory
VRM14+1+1 phases, 60 A stages
BIOSUEFI

Related guides

PCIe Lanes ExplainedM.2 SSD Sizes and KeysAMD AM5 SocketAMD AM5 Chipsets ComparedDDR5 Memory ExplainedPCIe 5.0 Explained

Similar Motherboards

ModelBenchmarkPriceCompare
Orbita MB-9471 Edge B850 Micro-ATX Wi-Fi 6E Motherboard3,290$189Compare
Halcyra MB-6513 Plus B650E E-ATX Wi-Fi 6E Motherboard5,708$639Compare
Orbita MB-2832 XT X570 Micro-ATX Wi-Fi 6E Motherboard5,164$529Compare
Zephyra MB-7871 SE X570 ATX Wi-Fi 6 Motherboard4,909$439Compare
Zephyra MB-4096 Edge B550 ATX Wi-Fi 6 Motherboard3,602$239Compare
Zephyra MB-5809 SE B550 E-ATX Motherboard2,314$109Compare

All Motherboards · JSON

Cite this page: Hardware Spec Index, “Zephyra MB-8642 Ultra B850 E-ATX Wi-Fi 6E Motherboard”, https://vextor7.com/item/5798413 (accessed 2026-10-19).