Hardware Spec Index

Zephyra MB-3677 Ultra X670E E-ATX Wi-Fi 6E Motherboard

Motherboards · Zephyra · SKU MB3677-ULTRA · Released 2023 · Updated 2026-10-19

Key facts

Benchmark index4,732 (Motherboards scale)
Category rank#5,400
Street price$399
Power44 W
Performance per dollar11.86
Released2023

Specifications

BrandZephyra
ModelZephyra MB-3677 Ultra
SocketAM5
ChipsetX670E
Form factorE-ATX
Memory4× DDR5 DIMM, up to 192 GB
Max memory speedDDR5-6400+ (OC)
Primary x16 slotPCIe 5.0 x16
M.2 slots3 total, 2× PCIe 5.0 x4
Rear USB-C1× USB 3.2 Gen 2x2 20Gbps (Type-C)
Ethernet2.5GbE
WirelessWi-Fi 6E (802.11ax, 6 GHz) + Bluetooth 5.3
OverclockingCPU + memory
VRM20+2+2 phases, 80 A stages
BIOSDual UEFI, BIOS flashback button

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Cite this page: Hardware Spec Index, “Zephyra MB-3677 Ultra X670E E-ATX Wi-Fi 6E Motherboard”, https://vextor7.com/item/24677204 (accessed 2026-10-19).