9 Terabits Per Second Data Processing Capacity
Enhancing Infrastructure Stability
On July 18, SK Broadband announced that it will commence commercial service of the international submarine cable SJC2 (Southeast-Asia Japan Cable 2), which connects seven Asian countries including South Korea, Japan, Singapore, and Hong Kong.
The SJC2, which spans a total length of 10,500 kilometers, is an international submarine cable linking major digital hubs in ten regions across seven Asian countries, including Busan in South Korea. SK Broadband is the sole participant from South Korea.
SJC2 is equipped with the latest transmission technologies and systems, enabling it to process data faster and more reliably than existing submarine cables. It has a data transmission capacity of 9 terabits per second (Tbps), which allows 360,000 subscribers to simultaneously stream UHD-quality video (25 Mbps) or download 281 full HD (4 gigabyte) movies in just one second.
SK Broadband emphasized that the launch of SJC2 will allow the company to stably manage the rapidly increasing demand for internet traffic in the era of artificial intelligence (AI). The company also established a foundation to expand its global business in areas such as international leased lines, data centers, big data, and cloud services.
Ha Minyong, Head of the AI DC Business Division at SK Broadband, stated, "With the commercialization of the SJC2 submarine cable, we expect to significantly enhance service reliability and business scalability to meet the diverse demands of the AI era," adding, "We will continue to do our best to secure future growth engines."
SK Broadband has participated in the SJC2 consortium since 2018, and began commercial service after completing construction and internal testing in May of this year. Since March 2025, the company has also been participating in the E2A consortium to build an international submarine cable connecting South Korea, the United States, Japan, and Taiwan.
© The Asia Business Daily(www.asiae.co.kr). All rights reserved.
