Hardware Spec Index

Tessarix PX-1521 Plus Dual M.2 PCIe Switch Card

PCIe Cards & NVMe Enclosures · Tessarix · SKU PX1521-PLUS · Released 2026 · Updated 2026-10-20

Key facts

Benchmark index3,557 (PCIe Cards & NVMe Enclosures scale)
Category rank#23,270
Street price$189
Power6 W
Performance per dollar18.82
Released2026

Specifications

BrandTessarix
ModelTessarix PX-1521 Plus
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
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
Altrix PX-1151 Edge USB 3.2 Gen 2 NVMe Enclosure860$19Compare
Tessarix PX-4765 Pro USB 3.2 Gen 2x2 NVMe Enclosure1,538$39Compare
Altrix PX-4087 XT USB4 40Gbps NVMe Enclosure4,355$229Compare
Tessarix PX-6944 Prime Quad M.2 PCIe 4.0 x16 Card2,408$99Compare
Altrix PX-4628 Ultra Quad M.2 PCIe 5.0 x16 Card5,140$299Compare
Strivon PX-7427 Max USB 3.2 Gen 2 NVMe Enclosure1,120$29Compare

All PCIe Cards & NVMe Enclosures · JSON

Cite this page: Hardware Spec Index, “Tessarix PX-1521 Plus Dual M.2 PCIe Switch Card”, https://vextor7.com/item/60002246 (accessed 2026-10-20).