Hardware Spec Index

Altrix PX-3999 XT Quad M.2 PCIe 5.0 x16 Card

PCIe Cards & NVMe Enclosures · Altrix · SKU PX3999-XT · Released 2024 · Updated 2026-10-18

Key facts

Benchmark index4,920 (PCIe Cards & NVMe Enclosures scale)
Category rank#27,213
Street price$279
Power12 W
Performance per dollar17.63
Released2024

Specifications

BrandAltrix
ModelAltrix PX-3999 XT
TypeQuad M.2 PCIe 5.0 x16 Card
Host interfacePCIe 5.0 x16, requires x4/x4/x4/x4 bifurcation
Throughput4× ~14,000 MB/s
Drive supportM.2 NVMe 2230 / 2242 / 2260 / 2280
CoolingHeatsink + 40 mm fan
Bus powerSlot-powered
CompatibilityUEFI boot supported; check slot bifurcation

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Cite this page: Hardware Spec Index, “Altrix PX-3999 XT Quad M.2 PCIe 5.0 x16 Card”, https://vextor7.com/item/718993 (accessed 2026-10-18).