Hardware Spec Index

Tessarix PX-5491 Ultra M.2 NVMe to PCIe 4.0 x4 Adapter

PCIe Cards & NVMe Enclosures · Tessarix · SKU PX5491-ULTRA · Released 2019 · Updated 2026-10-21

Key facts

Benchmark index1,401 (PCIe Cards & NVMe Enclosures scale)
Category rank#23,154
Street price$39
Power6 W
Performance per dollar35.92
Released2019

Specifications

BrandTessarix
ModelTessarix PX-5491 Ultra
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
CoolingHeatsink + 40 mm fan
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
Altrix PX-6103 Max USB 3.2 Gen 2 NVMe Enclosure1,129$29Compare
Strivon PX-7471 Pro PCIe 4.0 x16 Riser Cable1,580$39Compare
Veltrix PX-5776 SE M.2 NVMe to PCIe 4.0 x4 Adapter5,361$319Compare
Tessarix PX-8165 XT USB 3.2 Gen 2x2 NVMe Enclosure2,313$69Compare
Tessarix PX-2922 Pro USB 3.2 Gen 2 NVMe Enclosure4,295$269Compare
Tessarix PX-5377 SE USB 3.2 Gen 2 NVMe Enclosure3,343$149Compare

All PCIe Cards & NVMe Enclosures · JSON

Cite this page: Hardware Spec Index, “Tessarix PX-5491 Ultra M.2 NVMe to PCIe 4.0 x4 Adapter”, https://vextor7.com/item/6364110 (accessed 2026-10-21).