Hardware Spec Index

Novexa MB-7858 Ultra B550 Micro-ATX Motherboard

Motherboards · Novexa · SKU MB7858-ULTRA · Released 2021 · Updated 2026-10-22

Key facts

Benchmark index2,677 (Motherboards scale)
Category rank#40,515
Street price$129
Power26 W
Performance per dollar20.75
Released2021

Specifications

BrandNovexa
ModelNovexa MB-7858 Ultra
SocketAM4
ChipsetB550
Form factorMicro-ATX
Memory2× DDR4 DIMM, up to 64 GB
Max memory speedDDR4-4800+ (OC)
Primary x16 slotPCIe 4.0 x16
M.2 slots3 total
Rear USB-C1× USB 3.2 Gen 2 10Gbps (Type-C)
Ethernet2.5GbE
WirelessNone
OverclockingCPU + memory
VRM14+1+1 phases, 50 A stages
BIOSUEFI

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Cite this page: Hardware Spec Index, “Novexa MB-7858 Ultra B550 Micro-ATX Motherboard”, https://vextor7.com/item/3598446 (accessed 2026-10-22).