Hardware Spec Index

Zephyra MB-4251 Ultra B650 Micro-ATX Wi-Fi 6E Motherboard

Motherboards · Zephyra · SKU MB4251-ULTRA · Released 2022 · Updated 2026-10-20

Key facts

Benchmark index3,883 (Motherboards scale)
Category rank#34,837
Street price$319
Power39 W
Performance per dollar12.17
Released2022

Specifications

BrandZephyra
ModelZephyra MB-4251 Ultra
SocketAM5
ChipsetB650
Form factorMicro-ATX
Memory4× DDR5 DIMM, up to 192 GB
Max memory speedDDR5-6400+ (OC)
Primary x16 slotPCIe 4.0 x16
M.2 slots5 total, 1× 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
VRM18+2+1 phases, 80 A stages
BIOSDual UEFI, BIOS flashback button

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Cite this page: Hardware Spec Index, “Zephyra MB-4251 Ultra B650 Micro-ATX Wi-Fi 6E Motherboard”, https://vextor7.com/item/3540765 (accessed 2026-10-20).