Tessarix DK-3957 Ultra USB4 40Gbps Dock (90W)
Thunderbolt & USB4 Docks · Tessarix · SKU DK3957-ULTRA · Released 2023 · Updated 2026-10-23
Key facts
| Benchmark index | 2,900 (Thunderbolt & USB4 Docks scale) |
|---|---|
| Category rank | #44,747 |
| Street price | $109 |
| Power | 120 W |
| Performance per dollar | 26.61 |
| Released | 2023 |
Specifications
| Brand | Tessarix |
|---|---|
| Model | Tessarix DK-3957 Ultra |
| Host connection | USB4 (40Gbps) |
| Host charging | 90 W USB Power Delivery |
| Displays | Up to 2× 4K 60 Hz or 1× 8K 30 Hz |
| Downstream Thunderbolt/USB4 | 3× Thunderbolt 4 / USB4 |
| USB-A | 2× 10Gbps, 1× 5Gbps |
| Ethernet | 1GbE |
| Card reader | None |
| Audio | 3.5 mm combo jack |
| Power supply | 120 W external |
Related guides
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Cite this page: Hardware Spec Index, “Tessarix DK-3957 Ultra USB4 40Gbps Dock (90W)”, https://vextor7.com/item/83661104 (accessed 2026-10-23).