Tessarix DK-3871 Ultra USB4 40Gbps Dock (96W)
Thunderbolt & USB4 Docks · Tessarix · SKU DK3871-ULTRA · Released 2026 · Updated 2026-10-19
Key facts
| Benchmark index | 4,778 (Thunderbolt & USB4 Docks scale) |
|---|---|
| Category rank | #13,584 |
| Street price | $239 |
| Power | 126 W |
| Performance per dollar | 19.99 |
| Released | 2026 |
Specifications
| Brand | Tessarix |
|---|---|
| Model | Tessarix DK-3871 Ultra |
| Host connection | USB4 (40Gbps) |
| Host charging | 96 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 | 2.5GbE |
| Card reader | SD 4.0 UHS-II |
| Audio | 3.5 mm combo jack |
| Power supply | 126 W external |
Related guides
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| Quorvex DK-6317 Max Thunderbolt 4 Dock (90W) | 5,424 | $309 | Compare |
| Tessarix DK-5948 Prime USB4 40Gbps Dock (96W) | 4,572 | $219 | Compare |
| Quorvex DK-4964 XT USB-C 10Gbps Dock (85W) | 2,065 | $79 | Compare |
| Tessarix DK-5264 XT Thunderbolt 4 Dock (90W) | 4,528 | $209 | Compare |
| Tessarix DK-3863 Prime Thunderbolt 4 Dock (90W) | 6,461 | $419 | Compare |
| Tessarix DK-6021 Max USB-C 10Gbps Dock (60W) | 4,704 | $239 | Compare |
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Cite this page: Hardware Spec Index, “Tessarix DK-3871 Ultra USB4 40Gbps Dock (96W)”, https://vextor7.com/item/7077928 (accessed 2026-10-19).