Hardware Spec Index

Kyndral MB-9905 Ultra B550 Micro-ATX Motherboard

Motherboards · Kyndral · SKU MB9905-ULTRA · Released 2020 · Updated 2026-10-20

Key facts

Benchmark index1,643 (Motherboards scale)
Category rank#13,475
Street price$69
Power16 W
Performance per dollar23.81
Released2020

Specifications

BrandKyndral
ModelKyndral MB-9905 Ultra
SocketAM4
ChipsetB550
Form factorMicro-ATX
Memory4× DDR4 DIMM, up to 128 GB
Max memory speedDDR4-4800+ (OC)
Primary x16 slotPCIe 4.0 x16
M.2 slots4 total
Rear USB-C1× USB 3.2 Gen 2 10Gbps (Type-C)
Ethernet2.5GbE
WirelessNone
OverclockingCPU + memory
VRM10+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-3238 Plus B550 Micro-ATX Motherboard2,932$149Compare
Orbita MB-7372 Plus B650E ATX Wi-Fi 7 Motherboard5,853$559Compare
Halcyra MB-6627 Edge A620 ATX Motherboard1,478$69Compare
Novexa MB-1217 Plus B760 ATX Wi-Fi 6E Motherboard4,111$319Compare
Kyndral MB-4678 Ti H610 E-ATX Motherboard2,501$109Compare
Kyndral MB-5849 Edge B760 Mini-ITX Wi-Fi 7 Motherboard4,478$359Compare

All Motherboards · JSON

Cite this page: Hardware Spec Index, “Kyndral MB-9905 Ultra B550 Micro-ATX Motherboard”, https://vextor7.com/item/5387293 (accessed 2026-10-20).