Hardware Spec Index

Zephyra MB-9921 Pro B550 Micro-ATX Motherboard

Motherboards · Zephyra · SKU MB9921-PRO · Released 2021 · Updated 2026-10-19

Key facts

Benchmark index1,753 (Motherboards scale)
Category rank#8,844
Street price$79
Power17 W
Performance per dollar22.19
Released2021

Specifications

BrandZephyra
ModelZephyra MB-9921 Pro
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 slots5 total
Rear USB-C1× USB 3.2 Gen 2 10Gbps (Type-C)
Ethernet2.5GbE
WirelessNone
OverclockingCPU + memory
VRM11+1+1 phases, 50 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
Novexa MB-6763 Prime X570 Mini-ITX Wi-Fi 6 Motherboard4,361$369Compare
Halcyra MB-8333 XT B850 ATX Wi-Fi 6E Motherboard3,466$219Compare
Halcyra MB-7329 XT B550 E-ATX Wi-Fi 6 Motherboard3,178$179Compare
Zephyra MB-7870 Ti B550 Micro-ATX Wi-Fi 6E Motherboard3,732$269Compare
Novexa MB-1545 Ti B760 Micro-ATX Wi-Fi 6E Motherboard3,891$319Compare
Orbita MB-5225 Prime X670E ATX Wi-Fi 6E Motherboard5,040$519Compare

All Motherboards · JSON

Cite this page: Hardware Spec Index, “Zephyra MB-9921 Pro B550 Micro-ATX Motherboard”, https://vextor7.com/item/5594904 (accessed 2026-10-19).