Nvidia is building a multibillion-dollar behemoth in its networking business, which has become one of the company's most profitable divisions. The company's networking business has grown into the second-largest revenue driver behind its computing division, with $11 billion in Q4 revenue, a year-over-year increase of 267%, and brought in over $31 billion for the full year. The division, driven by growth in AI processing, includes tech like NVLink, InfiniBand Switches, Spectrum-X, the ethernet platform for AI networking, and co-packaged optics switches. Kevin Cook, a senior equity strategist at Zacks Investment research, described the networking business as one of Nvidia's most impressive new segments from the company. The origin of Nvidia’s networking business came from Mellanox, a networking company founded in 1999 that Nvidia acquired in 2020 for $7 billion. Despite not being much received attention, the business segment doesn't get as much attention as the company’�s chip business.