Inphi announced its 16nm 400Gbps 56GBaud Porrima Single-Lambda PAM4 chip platform. This silicon is required to hit cost points for QSFP56-DD modules that will enable high volume adoption of 400GbE inside data centers.

“The latest generation of 12.8Tb/s Ethernet switch silicon will support 32 ports of 400GbE and is expected to ship in late 2018. These advanced switches require 400GbE DR4/FR4 optical modules built from reliable, low power PAM4 silicon. The arrival of Inphi’s 400G PAM4 platform solution will boost the 400GbE market and allow optical components vendors and their customers to successfully transition to 400G speeds,” said Andrew Schmitt, lead analyst at Cignal AI.