Hardware Spec Index

Altrix PX-6646 Plus USB4 40Gbps NVMe Enclosure

PCIe Cards & NVMe Enclosures · Altrix · SKU PX6646-PLUS · Released 2023 · Updated 2026-10-23

Key facts

Benchmark index5,451 (PCIe Cards & NVMe Enclosures scale)
Category rank#36,364
Street price$359
Power8 W
Performance per dollar15.18
Released2023

Specifications

BrandAltrix
ModelAltrix PX-6646 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-4780 SE M.2 NVMe to PCIe 4.0 x4 Adapter3,976$219Compare
Altrix PX-4640 Core USB 3.2 Gen 2 NVMe Enclosure3,172$139Compare
Tessarix PX-2162 Max USB 3.2 Gen 2 NVMe Enclosure4,144$219Compare
Tessarix PX-6525 Pro M.2 NVMe to PCIe 4.0 x4 Adapter3,174$149Compare
Tessarix PX-4570 SE PCIe 4.0 x16 Riser Cable2,298$79Compare
Strivon PX-9814 Ultra USB4 40Gbps NVMe Enclosure3,000$119Compare

All PCIe Cards & NVMe Enclosures · JSON

Cite this page: Hardware Spec Index, “Altrix PX-6646 Plus USB4 40Gbps NVMe Enclosure”, https://vextor7.com/item/4433846 (accessed 2026-10-23).