Hardware Spec Index

Altrix PX-4940 Plus USB4 40Gbps NVMe Enclosure

PCIe Cards & NVMe Enclosures · Altrix · SKU PX4940-PLUS · Released 2024 · Updated 2026-10-20

Key facts

Benchmark index3,527 (PCIe Cards & NVMe Enclosures scale)
Category rank#19,163
Street price$149
Power8 W
Performance per dollar23.67
Released2024

Specifications

BrandAltrix
ModelAltrix PX-4940 Plus
TypeUSB4 40Gbps NVMe Enclosure
Host interfaceUSB4 (40Gbps), Thunderbolt 3/4 compatible
ThroughputUp to 3,800 MB/s
Drive supportM.2 NVMe 2230 / 2242 / 2260 / 2280
CoolingAluminum shell, thermal pad
Bus powerYes (bus-powered)
CompatibilityWindows, macOS, Linux; UASP

Related guides

NVMe SSDs ExplainedUSB4 ExplainedM.2 SSD Sizes and KeysPCIe Lanes ExplainedThunderbolt 5 ExplainedPCIe 5.0 Explained

Similar PCIe Cards & NVMe Enclosures

ModelBenchmarkPriceCompare
Strivon PX-5165 Ultra Dual M.2 PCIe Switch Card4,322$269Compare
Altrix PX-9056 XT Quad M.2 PCIe 4.0 x16 Card4,441$259Compare
Strivon PX-9464 Max Quad M.2 PCIe 5.0 x16 Card4,862$339Compare
Altrix PX-1097 Core Quad M.2 PCIe 5.0 x16 Card5,600$399Compare
Tessarix PX-2784 Plus PCIe 4.0 x16 Riser Cable2,994$139Compare
Altrix PX-7492 Max M.2 NVMe to PCIe 4.0 x4 Adapter1,426$39Compare

All PCIe Cards & NVMe Enclosures · JSON

Cite this page: Hardware Spec Index, “Altrix PX-4940 Plus USB4 40Gbps NVMe Enclosure”, https://vextor7.com/item/217329 (accessed 2026-10-20).