Hardware Spec Index

Altrix PX-4991 Prime USB 3.2 Gen 2x2 NVMe Enclosure

PCIe Cards & NVMe Enclosures · Altrix · SKU PX4991-PRIME · Released 2024 · Updated 2026-10-27

Key facts

Benchmark index1,748 (PCIe Cards & NVMe Enclosures scale)
Category rank#16,983
Street price$49
Power8 W
Performance per dollar35.67
Released2024

Specifications

BrandAltrix
ModelAltrix PX-4991 Prime
TypeUSB 3.2 Gen 2x2 NVMe Enclosure
Host interfaceUSB 3.2 Gen 2x2 (20Gbps), USB-C
ThroughputUp to 2,000 MB/s
Drive supportM.2 NVMe 2230 / 2242 / 2260 / 2280
CoolingAluminum shell, thermal pad
Bus powerYes (bus-powered)
CompatibilityWindows, macOS, Linux; UASP

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Cite this page: Hardware Spec Index, “Altrix PX-4991 Prime USB 3.2 Gen 2x2 NVMe Enclosure”, https://vextor7.com/item/1013680 (accessed 2026-10-27).