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A straight USB-C extension cable with matte connectors, three metres long

CableDeconn

CableDeconn USB C 3.2 Gen-2 240W 20Gbps 3m 10ft 4K 60Hz Thunderbolt 3

SKU CH-MTFR-9TCHM

A 3-metre USB-C extension cable delivering 20 Gbps data, 240 W charging and 4K 60 Hz video for Thunderbolt 3 devices

  • Connector TypeUSB Cables
  • 4K 60 Hz video on external displays via USB-C
  • 240 W charging at 48 V 5 A with original adapter
  • 20 Gbps data transfer between USB-C devices
  • 2 m length for flexible workstation setups
  • Compatible with MacBook Pro 2017-2024 and other DP Alt Mode laptops

What this cable does

This 3‑metre USB‑C extension cable carries 4K video at 60 Hz, delivers up to 240 W (48 V/5 A) of power, and moves data at 20 Gbps over the USB 3.2 Gen 2 link. It is built for users who need a single long lead to connect a laptop or phone to a monitor, dock or charger without losing bandwidth or charging speed.

Who it suits and who it does not

It suits creators and professionals who want one cable for display, power and fast file transfers between USB‑C devices such as MacBook Pro 2017‑2024, Dell XPS, Pixel or Chromebook models that support DisplayPort alternate mode. It is not for setups that require Thunderbolt 3 or Thunderbolt 4 certification, nor for devices that lack USB‑C video output or 20 Gbps host controllers.

The spec that decides fit

The single deciding figure is the 20 Gbps data rate combined with 240 W power delivery; if your host and display both support USB 3.2 Gen 2 and 48 V/5 A charging, this cable will handle video, data and power simultaneously.

Highlights

  • 4K 60 Hz video on external displays via USB-C
  • 240 W charging at 48 V 5 A with original adapter
  • 20 Gbps data transfer between USB-C devices
  • 2 m length for flexible workstation setups
  • Compatible with MacBook Pro 2017-2024 and other DP Alt Mode laptops

Specifications

Connector TypeUSB Cables

Questions about this item

Does the USB 3.2 Gen-2 interface cap data transfer at 20Gbps in practice?

Yes, the cable supports up to 20Gbps, but both the host and the connected device must also support that speed to achieve it.

What physical clearance does the 3m straight USB-C plug need to fit?

The straight Type-C connectors require enough depth behind the port for the plug body; no right-angle bends are built in.

How is the cable installed, and what step do users often miss?

Plug each end into a USB-C port; the step often missed is confirming the display's USB-C port supports DP alt mode for 4K 60Hz video.

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