Hardware Spec Index

Zephyra MB-6643 Ultra H810 E-ATX Motherboard

Motherboards · Zephyra · SKU MB6643-ULTRA · Released 2026 · Updated 2026-10-18

Key facts

Benchmark index1,663 (Motherboards scale)
Category rank#29,896
Street price$79
Power18 W
Performance per dollar21.05
Released2026

Specifications

BrandZephyra
ModelZephyra MB-6643 Ultra
SocketLGA1851
ChipsetH810
Form factorE-ATX
Memory4× DDR5 DIMM, up to 256 GB
Max memory speedDDR5-9000+ (OC, CUDIMM)
Primary x16 slotPCIe 4.0 x16
M.2 slots5 total
Rear USB-C1× USB 3.2 Gen 2 10Gbps (Type-C)
Ethernet2.5GbE
WirelessNone
OverclockingNone
VRM11+1+1 phases, 60 A stages
BIOSUEFI

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Cite this page: Hardware Spec Index, “Zephyra MB-6643 Ultra H810 E-ATX Motherboard”, https://vextor7.com/item/48302 (accessed 2026-10-18).