Hardware Spec Index

Altrix PX-9491 XT Quad M.2 PCIe 4.0 x16 Card

PCIe Cards & NVMe Enclosures · Altrix · SKU PX9491-XT · Released 2020 · Updated 2026-10-23

Key facts

Benchmark index4,446 (PCIe Cards & NVMe Enclosures scale)
Category rank#41,878
Street price$249
Power12 W
Performance per dollar17.86
Released2020

Specifications

BrandAltrix
ModelAltrix PX-9491 XT
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
Altrix PX-9913 Plus M.2 NVMe to PCIe 4.0 x4 Adapter1,753$49Compare
Altrix PX-8986 SE M.2 NVMe to PCIe 4.0 x4 Adapter4,353$219Compare
Strivon PX-1703 Pro M.2 NVMe to PCIe 4.0 x4 Adapter1,893$59Compare
Tessarix PX-8174 SE Dual M.2 PCIe Switch Card4,767$279Compare
Tessarix PX-4612 Max PCIe 4.0 x16 Riser Cable4,130$269Compare
Tessarix PX-4559 Prime Quad M.2 PCIe 5.0 x16 Card5,344$369Compare

All PCIe Cards & NVMe Enclosures · JSON

Cite this page: Hardware Spec Index, “Altrix PX-9491 XT Quad M.2 PCIe 4.0 x16 Card”, https://vextor7.com/item/3479692 (accessed 2026-10-23).