Hardware Spec Index

Veltrix PX-3921 Ultra USB4 40Gbps NVMe Enclosure

PCIe Cards & NVMe Enclosures · Veltrix · SKU PX3921-ULTRA · Released 2026 · Updated 2026-10-21

Key facts

Benchmark index3,032 (PCIe Cards & NVMe Enclosures scale)
Category rank#42,192
Street price$119
Power8 W
Performance per dollar25.48
Released2026

Specifications

BrandVeltrix
ModelVeltrix PX-3921 Ultra
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-5071 Ti USB 3.2 Gen 2x2 NVMe Enclosure4,602$249Compare
Tessarix PX-4892 Max Dual M.2 PCIe Switch Card3,808$209Compare
Altrix PX-5077 Ti PCIe 4.0 x16 Riser Cable1,372$39Compare
Tessarix PX-2965 Plus PCIe 4.0 x16 Riser Cable4,845$299Compare
Strivon PX-2436 Prime USB4 40Gbps NVMe Enclosure5,209$379Compare
Tessarix PX-7487 Edge USB4 40Gbps NVMe Enclosure4,750$279Compare

All PCIe Cards & NVMe Enclosures · JSON

Cite this page: Hardware Spec Index, “Veltrix PX-3921 Ultra USB4 40Gbps NVMe Enclosure”, https://vextor7.com/item/4584995 (accessed 2026-10-21).