Vantrel DK-3979 Ultra USB4 40Gbps Dock (100W)
Thunderbolt & USB4 Docks · Vantrel · SKU DK3979-ULTRA · Released 2022 · Updated 2026-10-23
Key facts
| Benchmark index | 3,277 (Thunderbolt & USB4 Docks scale) |
|---|---|
| Category rank | #47,521 |
| Street price | $149 |
| Power | 130 W |
| Performance per dollar | 21.99 |
| Released | 2022 |
Specifications
| Brand | Vantrel |
|---|---|
| Model | Vantrel DK-3979 Ultra |
| Host connection | USB4 (40Gbps) |
| Host charging | 100 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 | SD 4.0 UHS-II |
| Audio | 3.5 mm combo jack |
| Power supply | 130 W external |
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Cite this page: Hardware Spec Index, “Vantrel DK-3979 Ultra USB4 40Gbps Dock (100W)”, https://vextor7.com/item/31928155 (accessed 2026-10-23).