Hardware Spec Index

Zephyra MB-9280 Prime B550 E-ATX Motherboard

Motherboards · Zephyra · SKU MB9280-PRIME · Released 2020 · Updated 2026-10-23

Key facts

Benchmark index2,573 (Motherboards scale)
Category rank#45,669
Street price$139
Power26 W
Performance per dollar18.51
Released2020

Specifications

BrandZephyra
ModelZephyra MB-9280 Prime
SocketAM4
ChipsetB550
Form factorE-ATX
Memory4× DDR4 DIMM, up to 128 GB
Max memory speedDDR4-4800+ (OC)
Primary x16 slotPCIe 4.0 x16
M.2 slots4 total
Rear USB-C1× USB 3.2 Gen 2 10Gbps (Type-C)
Ethernet2.5GbE
WirelessNone
OverclockingCPU + memory
VRM14+1+1 phases, 70 A stages
BIOSUEFI

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Cite this page: Hardware Spec Index, “Zephyra MB-9280 Prime B550 E-ATX Motherboard”, https://vextor7.com/item/749961 (accessed 2026-10-23).