Hardware Spec Index

Novexa MB-8403 Prime B550 E-ATX Motherboard

Motherboards · Novexa · SKU MB8403-PRIME · Released 2020 · Updated 2026-10-23

Key facts

Benchmark index2,214 (Motherboards scale)
Category rank#32,595
Street price$99
Power22 W
Performance per dollar22.36
Released2020

Specifications

BrandNovexa
ModelNovexa MB-8403 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
VRM13+1+1 phases, 60 A stages
BIOSUEFI

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Cite this page: Hardware Spec Index, “Novexa MB-8403 Prime B550 E-ATX Motherboard”, https://vextor7.com/item/6867600 (accessed 2026-10-23).