Hardware Spec Index

Tessarix DK-3878 Ultra Thunderbolt 5 Dock (140W, 2.5GbE)

Thunderbolt & USB4 Docks · Tessarix · SKU DK3878-ULTRA · Released 2026 · Updated 2026-10-20

Key facts

Benchmark index3,850 (Thunderbolt & USB4 Docks scale)
Category rank#26,081
Street price$169
Power170 W
Performance per dollar22.78
Released2026

Specifications

BrandTessarix
ModelTessarix DK-3878 Ultra
Host connectionThunderbolt 5 (80Gbps, up to 120Gbps Bandwidth Boost)
Host charging140 W USB Power Delivery (EPR)
DisplaysUp to 3× 4K 144 Hz
Downstream Thunderbolt/USB43× Thunderbolt 5
USB-A3× 10Gbps
Ethernet2.5GbE
Card readerSD 4.0 UHS-II
Audio3.5 mm combo jack
Power supply220 W external

Related guides

Thunderbolt 5 ExplainedUSB4 Explained2.5GbE, 5GbE and 10GbE Networking

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Cite this page: Hardware Spec Index, “Tessarix DK-3878 Ultra Thunderbolt 5 Dock (140W, 2.5GbE)”, https://vextor7.com/item/1156512 (accessed 2026-10-20).