Hardware Spec Index

Altrix PX-9421 Ultra Quad M.2 PCIe 4.0 x16 Card

PCIe Cards & NVMe Enclosures · Altrix · SKU PX9421-ULTRA · Released 2022 · Updated 2026-10-22

Key facts

Benchmark index3,472 (PCIe Cards & NVMe Enclosures scale)
Category rank#4,047
Street price$179
Power12 W
Performance per dollar19.40
Released2022

Specifications

BrandAltrix
ModelAltrix PX-9421 Ultra
TypeQuad M.2 PCIe 4.0 x16 Card
Host interfacePCIe 4.0 x16, requires x4/x4/x4/x4 bifurcation
Throughput4× ~7,000 MB/s
Drive supportM.2 NVMe 2230 / 2242 / 2260 / 2280
CoolingHeatsink + 40 mm fan
Bus powerSlot-powered
CompatibilityUEFI boot supported; check slot bifurcation

Related guides

NVMe SSDs ExplainedPCIe Lanes ExplainedPCIe 4.0 vs PCIe 5.0USB4 ExplainedThunderbolt 5 ExplainedPCIe 5.0 Explained

Similar PCIe Cards & NVMe Enclosures

ModelBenchmarkPriceCompare
Tessarix PX-2922 Edge Quad M.2 PCIe 4.0 x16 Card5,471$329Compare
Strivon PX-3733 Ti Dual M.2 PCIe Switch Card5,600$399Compare
Strivon PX-4184 Edge USB 3.2 Gen 2x2 NVMe Enclosure3,177$149Compare
Strivon PX-5940 Ti USB 3.2 Gen 2 NVMe Enclosure2,855$119Compare
Veltrix PX-7666 Ultra USB4 40Gbps NVMe Enclosure3,313$149Compare
Altrix PX-8558 Ti USB 3.2 Gen 2x2 NVMe Enclosure4,377$229Compare

All PCIe Cards & NVMe Enclosures · JSON

Cite this page: Hardware Spec Index, “Altrix PX-9421 Ultra Quad M.2 PCIe 4.0 x16 Card”, https://vextor7.com/item/93033778 (accessed 2026-10-22).