Hardware Spec Index

Kyndral MB-1889 Ultra B550 ATX Wi-Fi 6E Motherboard

Motherboards · Kyndral · SKU MB1889-ULTRA · Released 2021 · Updated 2026-10-20

Key facts

Benchmark index3,000 (Motherboards scale)
Category rank#12,956
Street price$149
Power28 W
Performance per dollar20.13
Released2021

Specifications

BrandKyndral
ModelKyndral MB-1889 Ultra
SocketAM4
ChipsetB550
Form factorATX
Memory4× DDR4 DIMM, up to 128 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 6E (802.11ax, 6 GHz) + Bluetooth 5.3
OverclockingCPU + memory
VRM14+1+1 phases, 70 A stages
BIOSUEFI

Related guides

PCIe Lanes ExplainedM.2 SSD Sizes and KeysWi-Fi 6E ExplainedAMD AM5 Chipsets ComparedIntel 800 Series ChipsetsAMD AM5 Socket

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Cite this page: Hardware Spec Index, “Kyndral MB-1889 Ultra B550 ATX Wi-Fi 6E Motherboard”, https://vextor7.com/item/73314485 (accessed 2026-10-20).