gigabit per second 3
https://myharddrivesizecalculatorplus.valoradigest.com/posts/how-a-hard-drive-size-calculator-simplifies-capacity-planning
Gigabit per second is a data transfer speed that equals one billion bits per second, often used to measure network performance. For context, downloading a high-definition movie in seconds or streaming multiple 4K videos without buffering becomes possible at this rate, which is increasingly common in fiber-optic internet connections.