We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black Thunderbolt 3 USB-C cable with metal shell connectors

DELL

DELL Thunderbolt 3 USB-C Cable for TB15 TB16 K16A K17A (3V37X 5T73G)

SKU CH-6ADG-SM642

Connects Dell TB15, TB16 and K16A docks with Thunderbolt 3 and USB 3.1 over a metal-shell USB-C cable

  • Connection typeBuffer 79280
  • Thunderbolt 3 and USB 3.1 enable fast data, video and power over one cable
  • Metal shell construction protects the connection for reliable daily use
  • Designed for Dell TB15, TB16 and K16A docking stations
  • USB Type-C male connector plugs directly into compatible laptops and docks
  • Part numbers 3V37X, 5T73G confirm genuine Dell specification

Dell TB15 TB16 Dock Cable

This Thunderbolt 3 USB-C cable connects Dell TB15 and TB16 docking stations to compatible laptops. It also supports the K16A and K17A docking stations. The metal shell construction protects the connection during daily use. Part numbers 3V37X and 5T73G identify this specific replacement cable.

For Thunderbolt Dock Users

This cable suits owners of Dell TB15 or TB16 docks needing a reliable link to their workstation. It handles data, video and power delivery through a single USB-C connector. Buyers using non-Dell docks or standard USB-C hubs without Thunderbolt 3 support should look elsewhere. The connector type is listed as buffer_79280 in the specifications.

Thunderbolt 3 USB 3.1 Specification

The cable operates under the USB 3.1 standard with Thunderbolt 3 protocol support. This single specification determines whether your dock and laptop combination will function correctly. Verify that both host and dock explicitly list Thunderbolt 3 over USB-C before purchasing. No other interface or protocol is supported by this part.

How it compares

Measured against everything we stock in USB Cords & Extension Cables, at today’s prices. Recalculated every night.

Price $17.99
Pricier than about 70% of the 15,227 comparable items (median $14.99).

Specifications

Ports & slots
Connection typeBuffer 79280

Questions about this item

How do I install the 3V37X cable and what step do people miss?

Plug the USB Type C Male connector into the Thunderbolt 3 port on the TB15 or TB16 dock and the matching port on the laptop; the step often missed is seating the metal shell fully so the latch clicks.

What maintenance or replacement will the 3V37X cable need later?

The metal shell and Thunderbolt 3 interface are built for repeated mating cycles; inspect the connector pins for debris or bent contacts and replace the cable if the latch no longer holds or signal drops appear.

What limit appears first under sustained use of the 3V37X cable?

The USB 3.1 electrical budget and Thunderbolt 3 signalling set the maximum sustained throughput; the cable itself does not add a lower limit beyond that specification.

More in USB Cords & Extension Cables

Similar items