Hardware Spec Index

Zephyra MB-8540 Ultra B850 Mini-ITX Motherboard

Motherboards · Zephyra · SKU MB8540-ULTRA · Released 2026 · Updated 2026-10-23

Key facts

Benchmark index2,607 (Motherboards scale)
Category rank#32,712
Street price$159
Power26 W
Performance per dollar16.40
Released2026

Specifications

BrandZephyra
ModelZephyra MB-8540 Ultra
SocketAM5
ChipsetB850
Form factorMini-ITX
Memory2× DDR5 DIMM, up to 128 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
WirelessNone
OverclockingCPU + memory
VRM14+1+1 phases, 50 A stages
BIOSUEFI

Related guides

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Cite this page: Hardware Spec Index, “Zephyra MB-8540 Ultra B850 Mini-ITX Motherboard”, https://vextor7.com/item/5199933 (accessed 2026-10-23).