Hardware Spec Index

Kyndral MB-3971 Ultra B550 Mini-ITX Wi-Fi 6 Motherboard

Motherboards · Kyndral · SKU MB3971-ULTRA · Released 2020 · Updated 2026-10-22

Key facts

Benchmark index4,220 (Motherboards scale)
Category rank#24,104
Street price$309
Power39 W
Performance per dollar13.66
Released2020

Specifications

BrandKyndral
ModelKyndral MB-3971 Ultra
SocketAM4
ChipsetB550
Form factorMini-ITX
Memory2× DDR4 DIMM, up to 64 GB
Max memory speedDDR4-4800+ (OC)
Primary x16 slotPCIe 4.0 x16
M.2 slots2 total
Rear USB-C1× USB 3.2 Gen 2 10Gbps (Type-C)
Ethernet2.5GbE
WirelessWi-Fi 6 (802.11ax) + Bluetooth 5.2
OverclockingCPU + memory
VRM18+2+1 phases, 90 A stages
BIOSDual UEFI, BIOS flashback button

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Cite this page: Hardware Spec Index, “Kyndral MB-3971 Ultra B550 Mini-ITX Wi-Fi 6 Motherboard”, https://vextor7.com/item/6835406 (accessed 2026-10-22).