The Death of Cables in AI Data Centers

Taiwan's Zhen Ding Technology just announced something that should interest anyone building AI infrastructure: they've joined Nvidia's MGX (Modular GPU eXpress) ecosystem to supply cable-free PCB-based interconnect technology. Instead of hundreds of individual copper cables connecting GPU modules in a server rack, the new approach uses high-layer-count PCB backplanes to carry 112 Gbps PAM4 signals between compute modules.

This is a fundamental architectural shift in how AI server racks are wired.

Why This Matters for Engineers

The Cable Problem at AI Scale

A modern AI training cluster has thousands of GPU-to-GPU connections running NVLink at 100+ Gbps per lane.…