Hardware Spec Index

Tessarix PX-4958 XT Dual M.2 PCIe Switch Card

PCIe Cards & NVMe Enclosures · Tessarix · SKU PX4958-XT · Released 2021 · Updated 2026-10-18

Key facts

Benchmark index4,378 (PCIe Cards & NVMe Enclosures scale)
Category rank#34,952
Street price$269
Power6 W
Performance per dollar16.28
Released2021

Specifications

BrandTessarix
ModelTessarix PX-4958 XT
TypeDual M.2 PCIe Switch Card
Host interfacePCIe 4.0 x8 with onboard PCIe switch (no bifurcation needed)
ThroughputUp to 14,000 MB/s aggregate
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
Tessarix PX-6906 Ti Quad M.2 PCIe 4.0 x16 Card5,119$309Compare
Tessarix PX-3373 Ti USB 3.2 Gen 2x2 NVMe Enclosure1,387$39Compare
Strivon PX-1273 SE M.2 NVMe to PCIe 4.0 x4 Adapter2,407$89Compare
Tessarix PX-4272 XT M.2 NVMe to PCIe 4.0 x4 Adapter1,540$29Compare
Tessarix PX-2875 Max PCIe 5.0 x16 Riser Cable1,924$59Compare
Altrix PX-6438 Prime USB4 40Gbps NVMe Enclosure4,711$319Compare

All PCIe Cards & NVMe Enclosures · JSON

Cite this page: Hardware Spec Index, “Tessarix PX-4958 XT Dual M.2 PCIe Switch Card”, https://vextor7.com/item/18022 (accessed 2026-10-18).