Tessarix PX-9491 Plus Dual M.2 PCIe Switch Card
PCIe Cards & NVMe Enclosures · Tessarix · SKU PX9491-PLUS · Released 2025 · Updated 2026-10-21
Key facts
| Benchmark index | 4,420 (PCIe Cards & NVMe Enclosures scale) |
|---|---|
| Category rank | #42,537 |
| Street price | $239 |
| Power | 6 W |
| Performance per dollar | 18.49 |
| Released | 2025 |
Specifications
| Brand | Tessarix |
|---|---|
| Model | Tessarix PX-9491 Plus |
| Type | Dual M.2 PCIe Switch Card |
| Host interface | PCIe 4.0 x8 with onboard PCIe switch (no bifurcation needed) |
| Throughput | Up to 14,000 MB/s aggregate |
| Drive support | M.2 NVMe 2230 / 2242 / 2260 / 2280 |
| Cooling | Heatsink + 40 mm fan |
| Bus power | Slot-powered |
| Compatibility | UEFI boot supported; check slot bifurcation |
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Cite this page: Hardware Spec Index, “Tessarix PX-9491 Plus Dual M.2 PCIe Switch Card”, https://vextor7.com/item/701523 (accessed 2026-10-21).