Hardware Spec Index

Vantrel DK-6921 Ultra Thunderbolt 4 Dock (96W)

Thunderbolt & USB4 Docks · Vantrel · SKU DK6921-ULTRA · Released 2020 · Updated 2026-10-20

Key facts

Benchmark index4,671 (Thunderbolt & USB4 Docks scale)
Category rank#11,837
Street price$229
Power126 W
Performance per dollar20.40
Released2020

Specifications

BrandVantrel
ModelVantrel DK-6921 Ultra
Host connectionThunderbolt 4 (40Gbps)
Host charging96 W USB Power Delivery
DisplaysUp to 2× 4K 60 Hz or 1× 8K 30 Hz
Downstream Thunderbolt/USB43× Thunderbolt 4 / USB4
USB-A2× 10Gbps, 1× 5Gbps
Ethernet2.5GbE
Card readerSD 4.0 UHS-II
Audio3.5 mm combo jack
Power supply126 W external

Related guides

USB4 ExplainedThunderbolt 5 Explained2.5GbE, 5GbE and 10GbE Networking

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Cite this page: Hardware Spec Index, “Vantrel DK-6921 Ultra Thunderbolt 4 Dock (96W)”, https://vextor7.com/item/543263 (accessed 2026-10-20).