Hardware Spec Index

Orbita MB-9403 Prime B550 ATX Wi-Fi 6E Motherboard

Motherboards · Orbita · SKU MB9403-PRIME · Released 2022 · Updated 2026-10-24

Key facts

Benchmark index3,544 (Motherboards scale)
Category rank#42,766
Street price$229
Power34 W
Performance per dollar15.48
Released2022

Specifications

BrandOrbita
ModelOrbita MB-9403 Prime
SocketAM4
ChipsetB550
Form factorATX
Memory4× DDR4 DIMM, up to 128 GB
Max memory speedDDR4-4800+ (OC)
Primary x16 slotPCIe 4.0 x16
M.2 slots3 total
Rear USB-C1× USB 3.2 Gen 2x2 20Gbps (Type-C)
Ethernet2.5GbE
WirelessWi-Fi 6E (802.11ax, 6 GHz) + Bluetooth 5.3
OverclockingCPU + memory
VRM17+1+1 phases, 60 A stages
BIOSDual UEFI, BIOS flashback button

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Cite this page: Hardware Spec Index, “Orbita MB-9403 Prime B550 ATX Wi-Fi 6E Motherboard”, https://vextor7.com/item/2286138 (accessed 2026-10-24).