Hardware Spec Index

Zephyra MB-8421 SE Z890 ATX Wi-Fi 7 Motherboard

Motherboards · Zephyra · SKU MB8421-SE · Released 2026 · Updated 2026-10-20

Key facts

Benchmark index4,458 (Motherboards scale)
Category rank#33,367
Street price$449
Power44 W
Performance per dollar9.93
Released2026

Specifications

BrandZephyra
ModelZephyra MB-8421 SE
SocketLGA1851
ChipsetZ890
Form factorATX
Memory4× DDR5 DIMM, up to 256 GB
Max memory speedDDR5-9000+ (OC, CUDIMM)
Primary x16 slotPCIe 5.0 x16
M.2 slots4 total, 1× PCIe 5.0 x4
Rear USB-C2× Thunderbolt 4 (40Gbps, Type-C)
Ethernet5GbE
WirelessWi-Fi 7 (802.11be, 320 MHz) + Bluetooth 5.4
OverclockingCPU + memory
VRM20+2+2 phases, 80 A stages
BIOSDual UEFI, BIOS flashback button

Related guides

PCIe Lanes ExplainedM.2 SSD Sizes and KeysIntel LGA1851 SocketIntel 800 Series ChipsetsDDR5 Memory ExplainedPCIe 5.0 Explained

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Cite this page: Hardware Spec Index, “Zephyra MB-8421 SE Z890 ATX Wi-Fi 7 Motherboard”, https://vextor7.com/item/20015405 (accessed 2026-10-20).