Hardware Spec Index

Kyndral MB-9221 Ultra B550 Mini-ITX Motherboard

Motherboards · Kyndral · SKU MB9221-ULTRA · Released 2021 · Updated 2026-10-20

Key facts

Benchmark index2,046 (Motherboards scale)
Category rank#49,635
Street price$79
Power19 W
Performance per dollar25.90
Released2021

Specifications

BrandKyndral
ModelKyndral MB-9221 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
WirelessNone
OverclockingCPU + memory
VRM12+1+1 phases, 50 A stages
BIOSUEFI

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Cite this page: Hardware Spec Index, “Kyndral MB-9221 Ultra B550 Mini-ITX Motherboard”, https://vextor7.com/item/15670552 (accessed 2026-10-20).