BKSTEC Outperforms Competitors with Superior USB AOC Cables in Performance and Durability

August 18, 2023
This case study shows how BKSTEC optimizes a standard AOC USB 3.2 Gen2 Type-A to Type-C cable, which looks like a conventional cable available on the market. BKSTEC conducts comprehensive product analysis, using a range of tests and teardowns to improve the design.
Cosemi USB AOC fiber optic
Existing product

Challenge & Solution

Challenge A: Product performance issue.

Our customer expressed concerns about the performance and quality of a cable made by another manufacturer. Upon conducting a high speed eye diagram test, the results indicate subpar performance.

Solution A: Performance acceleration.

Choosing another module IC solution to optimize the eye-diagram performance.
Test equipment: Anritsu MP2110A, Keysight DCA-X 86100D

Challenge B: Mechanical engineering structure issue.

Our customer had previously encountered instances where the cable was ripped out of the Type-C plug’s die-cast shell and had to avoid this in the future. Our teardown analysis revealed that the structure was merely held together by glue, and the bonded area measured less than 2 mm2. Therefore, the cable has a high risk of breaking if it is forcefully inserted or removed from a socket.

Solution B: ME Design Customization.

Revamping the cable involved adding an OD metal bracket and booth, effectively improving the fixed strength to withstand 40N axial load for a minute, and wrenching strength from 0 to 30N in 4 directions.


Experienced in Optical Design.

Experience from the telecom industry of knowing how to prevent fiber optic damage.

AOC Troubleshooting Capability.

Comprehensive testing equipment and testing engineers, and reverse engineering capability.

Module & Mechanical Design Capability.

We boast a complete R&D team that handles every aspect, from module to mechanical and housing design.

Troubleshooting: evaluating the sample

Relevant Products