Hardware Spec Index

Tessarix PX-4638 Prime M.2 NVMe to PCIe 4.0 x4 Adapter

PCIe Cards & NVMe Enclosures · Tessarix · SKU PX4638-PRIME · Released 2020 · Updated 2026-10-23

Key facts

Benchmark index1,890 (PCIe Cards & NVMe Enclosures scale)
Category rank#24,508
Street price$59
Power6 W
Performance per dollar32.03
Released2020

Specifications

BrandTessarix
ModelTessarix PX-4638 Prime
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-8845 Ultra Thunderbolt 5 NVMe Enclosure5,056$379Compare
Altrix PX-6134 SE USB 3.2 Gen 2x2 NVMe Enclosure1,722$49Compare
Veltrix PX-1184 XT Quad M.2 PCIe 4.0 x16 Card3,733$189Compare
Veltrix PX-2236 Plus M.2 NVMe to PCIe 4.0 x4 Adapter5,359$369Compare
Tessarix PX-6156 Edge USB 3.2 Gen 2x2 NVMe Enclosure1,552$39Compare
Strivon PX-6352 Edge Quad M.2 PCIe 4.0 x16 Card3,611$209Compare

All PCIe Cards & NVMe Enclosures · JSON

Cite this page: Hardware Spec Index, “Tessarix PX-4638 Prime M.2 NVMe to PCIe 4.0 x4 Adapter”, https://vextor7.com/item/9410641 (accessed 2026-10-23).