Hardware Spec Index

Zephyra MB-1891 Ultra X870E Micro-ATX Wi-Fi 7 Motherboard

Motherboards · Zephyra · SKU MB1891-ULTRA · Released 2024 · Updated 2026-10-26

Key facts

Benchmark index4,823 (Motherboards scale)
Category rank#47,843
Street price$489
Power48 W
Performance per dollar9.86
Released2024

Specifications

BrandZephyra
ModelZephyra MB-1891 Ultra
SocketAM5
ChipsetX870E
Form factorMicro-ATX
Memory4× DDR5 DIMM, up to 256 GB
Max memory speedDDR5-6400+ (OC)
Primary x16 slotPCIe 5.0 x16
M.2 slots4 total, 2× PCIe 5.0 x4
Rear USB-C2× USB4 40Gbps (Type-C)
Ethernet5GbE
WirelessWi-Fi 7 (802.11be, 320 MHz) + Bluetooth 5.4
OverclockingCPU + memory
VRM22+2+2 phases, 110 A stages
BIOSDual UEFI, BIOS flashback button

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Cite this page: Hardware Spec Index, “Zephyra MB-1891 Ultra X870E Micro-ATX Wi-Fi 7 Motherboard”, https://vextor7.com/item/1315531 (accessed 2026-10-26).