Hardware Spec Index

Orbita MB-4878 XT Z890 Mini-ITX Wi-Fi 7 Motherboard

Motherboards · Orbita · SKU MB4878-XT · Released 2026 · Updated 2026-10-22

Key facts

Benchmark index5,442 (Motherboards scale)
Category rank#21,509
Street price$649
Power53 W
Performance per dollar8.39
Released2026

Specifications

BrandOrbita
ModelOrbita MB-4878 XT
SocketLGA1851
ChipsetZ890
Form factorMini-ITX
Memory2× DDR5 DIMM, up to 128 GB
Max memory speedDDR5-9000+ (OC, CUDIMM)
Primary x16 slotPCIe 5.0 x16
M.2 slots2 total, 1× PCIe 5.0 x4
Rear USB-C2× Thunderbolt 5 (80Gbps, Type-C)
Ethernet10GbE + 2.5GbE
WirelessWi-Fi 7 (802.11be, 320 MHz) + Bluetooth 5.4
OverclockingCPU + memory
VRM23+2+2 phases, 110 A stages
BIOSDual UEFI, BIOS flashback button

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, “Orbita MB-4878 XT Z890 Mini-ITX Wi-Fi 7 Motherboard”, https://vextor7.com/item/7863192 (accessed 2026-10-22).