Hardware Spec Index

Tessarix PX-5866 XT M.2 NVMe to PCIe 4.0 x4 Adapter

PCIe Cards & NVMe Enclosures · Tessarix · SKU PX5866-XT · Released 2025 · Updated 2026-10-26

Key facts

Benchmark index821 (PCIe Cards & NVMe Enclosures scale)
Category rank#17,590
Street price$19
Power6 W
Performance per dollar43.21
Released2025

Specifications

BrandTessarix
ModelTessarix PX-5866 XT
TypeM.2 NVMe to PCIe 4.0 x4 Adapter
Host interfacePCIe 4.0 x4 (passive)
ThroughputUp to 7,500 MB/s (drive-limited)
Drive supportM.2 NVMe 2230 / 2242 / 2260 / 2280
CoolingPassive heatsink
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
Tessarix PX-7017 Edge USB4 40Gbps NVMe Enclosure3,482$159Compare
Veltrix PX-6345 Ultra Dual M.2 PCIe Switch Card3,594$179Compare
Tessarix PX-9457 Plus PCIe 4.0 x16 Riser Cable786$19Compare
Strivon PX-7496 XT Quad M.2 PCIe 4.0 x16 Card5,447$359Compare
Strivon PX-6311 Max Quad M.2 PCIe 4.0 x16 Card2,307$79Compare
Altrix PX-4659 Core Dual M.2 PCIe Switch Card5,027$339Compare

All PCIe Cards & NVMe Enclosures · JSON

Cite this page: Hardware Spec Index, “Tessarix PX-5866 XT M.2 NVMe to PCIe 4.0 x4 Adapter”, https://vextor7.com/item/63668309 (accessed 2026-10-26).