Hardware Spec Index

Kyndral MB-1858 Ultra B550 Mini-ITX Motherboard

Motherboards · Kyndral · SKU MB1858-ULTRA · Released 2021 · Updated 2026-10-25

Key facts

Benchmark index2,774 (Motherboards scale)
Category rank#35,218
Street price$139
Power25 W
Performance per dollar19.96
Released2021

Specifications

BrandKyndral
ModelKyndral MB-1858 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
VRM14+1+1 phases, 60 A stages
BIOSUEFI

Related guides

PCIe Lanes ExplainedM.2 SSD Sizes and KeysAMD AM5 Chipsets ComparedIntel 800 Series ChipsetsAMD AM5 SocketIntel LGA1851 Socket

Similar Motherboards

ModelBenchmarkPriceCompare
Orbita MB-3755 Core B550 E-ATX Wi-Fi 6 Motherboard4,205$359Compare
Novexa MB-5527 SE B550 E-ATX Wi-Fi 6E Motherboard3,647$259Compare
Kyndral MB-6404 SE B550 ATX Motherboard2,011$69Compare
Zephyra MB-3218 XT X570 Micro-ATX Motherboard1,756$79Compare
Halcyra MB-2287 Ultra B550 Micro-ATX Motherboard1,519$79Compare
Kyndral MB-4499 XT B760 E-ATX Motherboard2,834$139Compare

All Motherboards · JSON

Cite this page: Hardware Spec Index, “Kyndral MB-1858 Ultra B550 Mini-ITX Motherboard”, https://vextor7.com/item/2003064 (accessed 2026-10-25).