Hardware Spec Index

Kyndral MB-5903 Ultra B550 Micro-ATX Wi-Fi 6E Motherboard

Motherboards · Kyndral · SKU MB5903-ULTRA · Released 2021 · Updated 2026-10-19

Key facts

Benchmark index3,899 (Motherboards scale)
Category rank#41,874
Street price$289
Power36 W
Performance per dollar13.49
Released2021

Specifications

BrandKyndral
ModelKyndral MB-5903 Ultra
SocketAM4
ChipsetB550
Form factorMicro-ATX
Memory2× DDR4 DIMM, up to 64 GB
Max memory speedDDR4-4800+ (OC)
Primary x16 slotPCIe 4.0 x16
M.2 slots5 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
VRM17+2+1 phases, 70 A stages
BIOSDual UEFI, BIOS flashback button

Related guides

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

Similar Motherboards

ModelBenchmarkPriceCompare
Zephyra MB-5851 Plus X570 Mini-ITX Wi-Fi 6E Motherboard5,900$679Compare
Orbita MB-9545 Pro B550 ATX Wi-Fi 6E Motherboard4,198$319Compare
Kyndral MB-1267 Edge B550 ATX Wi-Fi 6 Motherboard3,720$229Compare
Halcyra MB-3010 Core X570 ATX Wi-Fi 6 Motherboard5,010$509Compare
Kyndral MB-6721 Core B860 ATX Wi-Fi 7 Motherboard3,587$249Compare
Orbita MB-4115 Plus X570 E-ATX Motherboard1,923$79Compare

All Motherboards · JSON

Cite this page: Hardware Spec Index, “Kyndral MB-5903 Ultra B550 Micro-ATX Wi-Fi 6E Motherboard”, https://vextor7.com/item/3692755 (accessed 2026-10-19).