Client Challenge
A global laptop accessory brand needed a USB-C hub expander with 3 ports (4K HDMI, USB 3.2, SD card reader, etc.), compact size, and high data transfer speed (up to 10Gbps). The challenge was ensuring signal stability between multiple ports and avoiding electromagnetic interference (EMI).
Our Solution
We used high-quality EMI shielding materials for the shell and optimized the internal circuit layout through electromagnetic simulation. We adopted precision SMT (Surface Mount Technology) for PCB assembly to ensure reliable soldering. Each unit underwent strict signal integrity testing and data transfer speed testing before delivery.

Project Outcome
The USB-C hub achieved stable 10Gbps data transfer speed and 4K@60Hz video output without signal interference. The product size was controlled at 85×45×12mm, meeting the compact design requirement. We achieved a monthly production capacity of 100,000 units with a product qualification rate of 99.9%. The product became a top-selling laptop accessory on major e-commerce platforms.



Client Reviews:
“Signal stability is the core of USB-C hub. TONGYONG’s EMI shielding solution solved our biggest worry. The compact design and high qualification rate made this product a bestseller on e-commerce platforms.”
— Product Director of Global Laptop Accessory Brand

