Lenovo Thunderbolt Cable 0.7m 40Gbit/s Black

Lenovo 4X91K16968 | 40 Gbit/s Thunderbolt 4 Cable

The Lenovo 4X91K16968 Thunderbolt cable 0.7 m 40 Gbit/s Black connects high-performance docks and storage to your laptop. It is a 0.7-metre passive cable designed for short runs. This cable suits users who need reliable 40 Gbit/s data transfer and DisplayPort passthrough. Because it is Thunderbolt 4, it offers backward compatibility with earlier Thunderbolt standards. Also, it uses a USB Type-C connector for broad device support.

Technical Overview: Lenovo 4X91K16968 Thunderbolt cable 0.7 m 40 Gbit/s Black

40 Gbit/s Bandwidth for Demanding Workflows

This cable supports 40 Gbit/s data transfer. In practice, that enables fast file moves between external NVMe storage and your workstation. It also carries high-resolution video signals via DisplayPort Alternate Mode. So, you can drive 4K or 8K displays while moving data. Because bandwidth is shared, real-world speeds depend on your dock and drive.

Short-Run Passive Design for Desk Setups

The 0.7 m length suits fixed desk layouts. Passive cables work best at shorter distances. For runs beyond 2 metres, an active Thunderbolt cable is usually required. This one keeps your workspace tidy and reduces cable clutter. Also, the 4.6 mm diameter offers a flexible, low-profile feel.

USB Type-C DisplayPort Alternate Mode Support

The cable supports USB Type-C DisplayPort Alternate Mode. That means it can output video from a compatible USB-C port. You can connect monitors without a separate video cable. However, your laptop and display must support DisplayPort over USB-C. Confirm your device’s video output capability before purchase.

Black Finish and Build Details

The cable is finished in black. The connectors are male USB Type-C on both ends. The package weight is 48.13 g. The cable itself weighs 33 g. These details help with packing and handling. Also, the compact size suits travel kits.

Compatibility and Dock Matching

This cable matches updated Thunderbolt 4 docks. It can unleash the power of your processor by enabling fast peripheral connections. Because it is Thunderbolt 4, it works with Thunderbolt 3 and USB4 devices. However, full speed requires compatible ports on both ends. Check your dock’s cable requirements.

Box contents

• 1 x Lenovo 4X91K16968 Thunderbolt 4 cable, 0.7 m, black

Check before you buy

• Confirm your laptop has a Thunderbolt 4 or USB4 port.
• Verify your dock supports 40 Gbit/s Thunderbolt 4 input.
• Check that your monitor supports DisplayPort over USB-C.
• Ensure your operating system supports Thunderbolt 4 features.

Frequently Asked Questions

Q: Is this cable active or passive?

A: It is a passive Thunderbolt 4 cable. Use it for short runs up to 0.7 metres.

Q: Does it support USB4 devices?

A: Yes. Thunderbolt 4 is compatible with USB4, subject to your device’s support.

Q: Can I connect a 4K monitor?

A: Yes, if your laptop and monitor support DisplayPort over USB-C. Verify your setup.

Q: Is the cable UK-compliant?

A: The input does not state UKCA or CE marks. Confirm compliance with the manufacturer.

Q: What warranty applies in the UK?

A: Covered by the standard Manufacturer Warranty. Check the warranty period with Lenovo UK.

The Consultant’s verdict & warranty

This cable is best for UK professionals linking a Thunderbolt 4 dock or fast storage at desk distance. It offers 40 Gbit/s bandwidth and DisplayPort passthrough in a compact, black design. Avoid it for long runs or if your ports are only USB-C without Thunderbolt. Covered by the standard Manufacturer Warranty.