Hardware Spec Index

Kyndral MB-6557 XT X870 Mini-ITX Wi-Fi 7 Motherboard

Motherboards · Kyndral · SKU MB6557-XT · Released 2025 · Updated 2026-10-19

Key facts

Benchmark index4,952 (Motherboards scale)
Category rank#34,802
Street price$449
Power45 W
Performance per dollar11.03
Released2025

Specifications

BrandKyndral
ModelKyndral MB-6557 XT
SocketAM5
ChipsetX870
Form factorMini-ITX
Memory2× DDR5 DIMM, up to 128 GB
Max memory speedDDR5-8000+ (OC)
Primary x16 slotPCIe 5.0 x16
M.2 slots2 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
VRM20+2+2 phases, 80 A stages
BIOSDual UEFI, BIOS flashback button

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Cite this page: Hardware Spec Index, “Kyndral MB-6557 XT X870 Mini-ITX Wi-Fi 7 Motherboard”, https://vextor7.com/item/85648787 (accessed 2026-10-19).