Announced 31 October 2018
The Nexus 3408-S is a 4-RU modular version of the Cisco 3432. Each slot can accept either a 4-port 400 Gb/s card or a 16-port 100 Gb/s card. The switching capacity is the same as its 1-RU cousin. In a mixed 400G and 100G environment, the mess of splitter cables can be avoided. I believe this is an Innovium Teralynx ASIC for the same reasons as the Nexus 3432. The switches were announced in a common press release.