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Black Thunderbolt 3 USB-C cable with male-to-female connectors and metal shell

DELL

DELL Thunderbolt 3 USB-C Cable 3V37X for TB15 TB16 K16A K17A Docking Station

SKU CH-MF2R-6SWFX

A Thunderbolt 3 USB-C cable with a 68-pin docking connector for TB15, TB16, K16A and K17A stations

  • Connection typeUSB-C Cable
  • Connector genderMale to Female
  • Product colorBlack
  • Connects Thunderbolt 3 laptops to Dell TB15 and TB16 docks
  • Male USB-C to male 68-pin docking connector
  • Supports data, video and power through one cable
  • Genuine Dell part numbers 3V37X and 5T73G
  • Black metal-shell cable built for precision fit

Genuine Dell Thunderbolt 3 dock cable

This Dell Thunderbolt 3 USB-C cable connects a Thunderbolt 3 laptop to compatible Dell TB15, TB16, K16A and K17A docking stations. It carries data, video and power over a single link. The part numbers 3V37X and 5T73G identify the correct replacement for those docks.

Sustained high-bandwidth link to the dock

The cable maintains the full Thunderbolt 3 bandwidth during extended sessions with external displays and storage. It delivers continuous power to the laptop while the dock drives peripherals. The metal shell construction helps preserve signal integrity under constant load.

Male USB-C to male 68-pin dock connector

Connector A is a USB Type-C male plug; Connector B is a Dell 68-pin docking station male plug. This fixed pinout means the cable only fits the listed Dell Thunderbolt docks. It will not work with standard USB-C monitors, hubs or laptops lacking Thunderbolt 3 support.

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

Product
Product colorBlack
Ports & slots
Connection typeUSB-C Cable
Connector genderMale to Female

Questions about this item

How much heat or power does the Thunderbolt 3 cable generate when left connected all day?

The cable is a passive copper link with no active electronics, so it produces no measurable heat and draws no power of its own; only the dock and laptop negotiate power delivery.

What must I already own for this cable to work?

You need a Dell Thunderbolt 3 laptop and a Dell TB15, TB16, K16A or K17A docking station; the cable connects the laptop's USB-C port to the dock's 68-pin male connector.

Will this cable work with my older Dell dock that uses a different connector?

No; the cable's Connector B is a Dell 68-pin male plug designed only for the TB15, TB16, K16A and K17A docks, so it will not fit earlier proprietary dock interfaces.

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