Hardware Spec Index

Zephyra MB-9399 Prime B650 E-ATX Motherboard

Motherboards · Zephyra · SKU MB9399-PRIME · Released 2022 · Updated 2026-10-22

Key facts

Benchmark index2,761 (Motherboards scale)
Category rank#21,580
Street price$149
Power26 W
Performance per dollar18.53
Released2022

Specifications

BrandZephyra
ModelZephyra MB-9399 Prime
SocketAM5
ChipsetB650
Form factorE-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 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-9399 Prime B650 E-ATX Motherboard”, https://vextor7.com/item/62816038 (accessed 2026-10-22).