Hardware Spec Index

Zephyra MB-1138 Prime B850 ATX Wi-Fi 7 Motherboard

Motherboards · Zephyra · SKU MB1138-PRIME · Released 2025 · Updated 2026-10-25

Key facts

Benchmark index4,032 (Motherboards scale)
Category rank#47,834
Street price$349
Power40 W
Performance per dollar11.55
Released2025

Specifications

BrandZephyra
ModelZephyra MB-1138 Prime
SocketAM5
ChipsetB850
Form factorATX
Memory2× DDR5 DIMM, up to 128 GB
Max memory speedDDR5-8000+ (OC)
Primary x16 slotPCIe 4.0 x16
M.2 slots5 total, 1× PCIe 5.0 x4
Rear USB-C1× USB 3.2 Gen 2x2 20Gbps (Type-C)
Ethernet5GbE
WirelessWi-Fi 7 (802.11be, 320 MHz) + Bluetooth 5.4
OverclockingCPU + memory
VRM19+2+1 phases, 80 A stages
BIOSDual UEFI, BIOS flashback button

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Cite this page: Hardware Spec Index, “Zephyra MB-1138 Prime B850 ATX Wi-Fi 7 Motherboard”, https://vextor7.com/item/32936089 (accessed 2026-10-25).