Hardware Spec Index

Tessarix PX-7856 XT Dual M.2 PCIe Switch Card

PCIe Cards & NVMe Enclosures · Tessarix · SKU PX7856-XT · Released 2023 · Updated 2026-10-23

Key facts

Benchmark index4,745 (PCIe Cards & NVMe Enclosures scale)
Category rank#46,751
Street price$269
Power6 W
Performance per dollar17.64
Released2023

Specifications

BrandTessarix
ModelTessarix PX-7856 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-8252 Max Quad M.2 PCIe 4.0 x16 Card3,119$139Compare
Veltrix PX-2604 Core Quad M.2 PCIe 4.0 x16 Card2,803$119Compare
Veltrix PX-7626 Max USB 3.2 Gen 2x2 NVMe Enclosure2,579$99Compare
Veltrix PX-2730 Prime Thunderbolt 5 NVMe Enclosure4,256$229Compare
Altrix PX-6817 Pro Dual M.2 PCIe Switch Card4,254$229Compare
Altrix PX-3613 Ultra M.2 NVMe to PCIe 4.0 x4 Adapter1,678$39Compare

All PCIe Cards & NVMe Enclosures · JSON

Cite this page: Hardware Spec Index, “Tessarix PX-7856 XT Dual M.2 PCIe Switch Card”, https://vextor7.com/item/641329 (accessed 2026-10-23).