Hardware Spec Index

Altrix PX-4381 Ultra Dual M.2 PCIe Switch Card

PCIe Cards & NVMe Enclosures · Altrix · SKU PX4381-ULTRA · Released 2025 · Updated 2026-10-25

Key facts

Benchmark index3,568 (PCIe Cards & NVMe Enclosures scale)
Category rank#22,728
Street price$199
Power6 W
Performance per dollar17.93
Released2025

Specifications

BrandAltrix
ModelAltrix PX-4381 Ultra
TypeDual M.2 PCIe Switch Card
Host interfacePCIe 4.0 x8 with onboard PCIe switch (no bifurcation needed)
ThroughputUp to 14,000 MB/s aggregate
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 ExplainedUSB4 ExplainedThunderbolt 5 ExplainedPCIe 5.0 Explained

Similar PCIe Cards & NVMe Enclosures

ModelBenchmarkPriceCompare
Altrix PX-2916 Max Dual M.2 PCIe Switch Card3,957$229Compare
Strivon PX-4200 Core USB4 40Gbps NVMe Enclosure4,247$199Compare
Tessarix PX-6128 Core USB 3.2 Gen 2x2 NVMe Enclosure3,556$149Compare
Veltrix PX-9071 Max USB4 40Gbps NVMe Enclosure4,294$229Compare
Tessarix PX-3537 XT PCIe 4.0 x16 Riser Cable969$29Compare
Strivon PX-7264 Prime Dual M.2 PCIe Switch Card4,514$249Compare

All PCIe Cards & NVMe Enclosures · JSON

Cite this page: Hardware Spec Index, “Altrix PX-4381 Ultra Dual M.2 PCIe Switch Card”, https://vextor7.com/item/4317834 (accessed 2026-10-25).