Hardware Spec Index

Altrix PX-8421 Ultra Quad M.2 PCIe 4.0 x16 Card

PCIe Cards & NVMe Enclosures · Altrix · SKU PX8421-ULTRA · Released 2020 · Updated 2026-10-26

Key facts

Benchmark index3,326 (PCIe Cards & NVMe Enclosures scale)
Category rank#47,732
Street price$159
Power12 W
Performance per dollar20.92
Released2020

Specifications

BrandAltrix
ModelAltrix PX-8421 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
CoolingPassive heatsink
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
Veltrix PX-4015 Max M.2 NVMe to PCIe 4.0 x4 Adapter1,284$29Compare
Strivon PX-1099 Core USB 3.2 Gen 2 NVMe Enclosure2,728$109Compare
Veltrix PX-8810 Ti Dual M.2 PCIe Switch Card4,993$389Compare
Veltrix PX-5861 Pro Quad M.2 PCIe 4.0 x16 Card4,659$299Compare
Veltrix PX-5146 XT USB 3.2 Gen 2x2 NVMe Enclosure1,276$29Compare
Altrix PX-3053 Edge Dual M.2 PCIe Switch Card5,600$349Compare

All PCIe Cards & NVMe Enclosures · JSON

Cite this page: Hardware Spec Index, “Altrix PX-8421 Ultra Quad M.2 PCIe 4.0 x16 Card”, https://vextor7.com/item/17812716 (accessed 2026-10-26).