Hardware Spec Index

Zephyra MB-6657 Ultra X870 E-ATX Wi-Fi 7 Motherboard

Motherboards · Zephyra · SKU MB6657-ULTRA · Released 2024 · Updated 2026-10-20

Key facts

Benchmark index5,549 (Motherboards scale)
Category rank#34,437
Street price$659
Power53 W
Performance per dollar8.42
Released2024

Specifications

BrandZephyra
ModelZephyra MB-6657 Ultra
SocketAM5
ChipsetX870
Form factorE-ATX
Memory4× DDR5 DIMM, up to 256 GB
Max memory speedDDR5-6400+ (OC)
Primary x16 slotPCIe 5.0 x16
M.2 slots4 total, 1× PCIe 5.0 x4
Rear USB-C2× USB4 40Gbps (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

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Cite this page: Hardware Spec Index, “Zephyra MB-6657 Ultra X870 E-ATX Wi-Fi 7 Motherboard”, https://vextor7.com/item/2984201 (accessed 2026-10-20).