Hardware Spec Index

Novexa MB-3878 Prime B860 ATX Motherboard

Motherboards · Novexa · SKU MB3878-PRIME · Released 2025 · Updated 2026-10-22

Key facts

Benchmark index2,776 (Motherboards scale)
Category rank#24,397
Street price$139
Power26 W
Performance per dollar19.97
Released2025

Specifications

BrandNovexa
ModelNovexa MB-3878 Prime
SocketLGA1851
ChipsetB860
Form factorATX
Memory4× DDR5 DIMM, up to 256 GB
Max memory speedDDR5-9000+ (OC, CUDIMM)
Primary x16 slotPCIe 5.0 x16
M.2 slots5 total, 1× PCIe 5.0 x4
Rear USB-C1× USB 3.2 Gen 2 10Gbps (Type-C)
Ethernet2.5GbE
WirelessNone
OverclockingMemory only
VRM14+1+1 phases, 50 A stages
BIOSUEFI

Related guides

PCIe Lanes ExplainedM.2 SSD Sizes and KeysIntel LGA1851 SocketIntel 800 Series ChipsetsDDR5 Memory ExplainedPCIe 5.0 Explained

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Cite this page: Hardware Spec Index, “Novexa MB-3878 Prime B860 ATX Motherboard”, https://vextor7.com/item/85701513 (accessed 2026-10-22).