Hardware Spec Index

Orbita MB-9391 Pro B550 E-ATX Wi-Fi 6 Motherboard

Motherboards · Orbita · SKU MB9391-PRO · Released 2020 · Updated 2026-10-21

Key facts

Benchmark index2,966 (Motherboards scale)
Category rank#44,466
Street price$159
Power29 W
Performance per dollar18.65
Released2020

Specifications

BrandOrbita
ModelOrbita MB-9391 Pro
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 slots2 total
Rear USB-C1× USB 3.2 Gen 2 10Gbps (Type-C)
Ethernet2.5GbE
WirelessWi-Fi 6 (802.11ax) + Bluetooth 5.2
OverclockingCPU + memory
VRM15+1+1 phases, 80 A stages
BIOSUEFI

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Cite this page: Hardware Spec Index, “Orbita MB-9391 Pro B550 E-ATX Wi-Fi 6 Motherboard”, https://vextor7.com/item/310422 (accessed 2026-10-21).