QSFP-DD

Blog post

In Praise of the QSFP – from 40GbE to 400GbE and Beyond

Cisco is building and testing QSFP-DD systems and modules capable of driving 400GbE Ethernet electrical interfaces and cooling 20W modules with margin to address thermal and high-speed electrical challenges. These advances for the 400GbE are not at the limits of what is possible. Further innovation will reduce power as chips move to 7nm from the current 16nm processes.

March 6, 2019 5 min read
Blog post

QSFP-DD Optical form factor: An evolutionary approach to 400GbE Interconnect

Posting this blog on behalf of Mark Nowell, Distinguished Engineer, INSBU. The rapid growth of cloud data center in terms of storage and networking is something Cisco has been tracking through the Cisco Global Cloud Index for several years now. Our latest forecast shows that we’re on track to meet and likely exceed the 14 […]

January 18, 2018 3 min read