Guāngxiān wǎngluò de sùdù kě dá měi miǎo shíyì wèiyuán.
Fiber-optic network speeds can reach one gigabit per second.
Tips
usage
Taiwan-style technical Chinese. Mainland tech writing usually keeps the abbreviation: 千兆位 or just Gb. 位元 means 'bit'; in Mainland usage you more often see 比特 (transliteration) or just 位.
register
Found in Taiwanese networking specs and translated technical documents. In a Mainland context you're more likely to see 千兆比特 or simply Gb.
