Hardware Spec Index

Zephyra MB-4557 Plus X870 Micro-ATX Wi-Fi 7 Motherboard

Motherboards · Zephyra · SKU MB4557-PLUS · Released 2024 · Updated 2026-10-23

Key facts

Benchmark index5,337 (Motherboards scale)
Category rank#16,048
Street price$559
Power49 W
Performance per dollar9.55
Released2024

Specifications

BrandZephyra
ModelZephyra MB-4557 Plus
SocketAM5
ChipsetX870
Form factorMicro-ATX
Memory4× DDR5 DIMM, up to 256 GB
Max memory speedDDR5-6400+ (OC)
Primary x16 slotPCIe 5.0 x16
M.2 slots5 total, 1× PCIe 5.0 x4
Rear USB-C2× USB4 40Gbps (Type-C)
Ethernet5GbE
WirelessWi-Fi 7 (802.11be, 320 MHz) + Bluetooth 5.4
OverclockingCPU + memory
VRM22+2+2 phases, 90 A stages
BIOSDual UEFI, BIOS flashback button

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Cite this page: Hardware Spec Index, “Zephyra MB-4557 Plus X870 Micro-ATX Wi-Fi 7 Motherboard”, https://vextor7.com/item/3900678 (accessed 2026-10-23).