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Secure Connection Assured for Sonnet 0.5-Meter Thunderbolt 3 Cables

Thunderbolt 3 connectors are held in place by friction—which usually works fine in setups where your gear remains protected from disturbance while operating. But, if there’s a chance of movement nearby, it’s possible the Thunderbolt cable can be accidentally disconnected, leading to the loss of a file or an entire project. Sonnet’s ThunderLok 3 Thunderbolt connector retainer clip was designed to solve this problem by preventing accidental cable disconnections from many of Sonnet’s Thunderbolt 3 products.

To use it, simply slip it over the cable connector, and then plug in the connector and secure it to the product by turning a thumbscrew. Because ThunderLok 3 doesn’t attach to the connector, it stays on the cable and won’t get lost when not in use. Sonnet already includes a single ThunderLok 3 with many of its Thunderbolt 3 products. ThunderLok 3 is compatible with Sonnet 0.5-meter Thunderbolt 3 (40Gbps) cables.

Key Features

Prevents Accidental Cable Disconnection—When used with ThunderLok 3-compatible products, secures Thunderbolt cable from accidentally being unplugged

Easy to Install and Use—Slides over a Thunderbolt 3 cable connector, and then secures it to the device by turning a thumbscrew

Won't Get Lost—Doesn’t attach to Thunderbolt connector, but remains on cable even when disconnected

ThunderLok 3

ThunderLok 3 Connected to Thunderbolt 3 Cable

Benefit from a Secure Connection

Sonnet's ThunderLok 3 easily fastens to a Thunderbolt 3 cable to ensure a secure connection to compatible Sonnet Thunderbolt 3 products. The retainer clips remains on the cable and won't get lost.

Thunderbolt Cable with ThunderLok Connected to Thunderbolt 3 Port


Part No.  
TB3-LOK2 ThunderLok 3 Thunderbolt Connector Retainer Clip (2-Pack)
Warranty 2-year
Package Contents
  • Two Sonnet ThunderLok Thunderbolt Connector Retainer Clips


Specifications subject to change without notice.

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Product Compatibility

Echo Express SEL - Thunderbolt 3 Edition

Echo Express SE I - Thunderbolt 3 Edition

RoHS Compliant Logo

Accessories Part No. Description
Thunderbolt 3 Cable Thunderbolt 3 (40 Gbps) Cable TCB-TB3-05M 0.5-meter Thunderbolt 3 (40Gbps) cable