Data Transmission Service is a data exchange service that streamlines data migration, data synchronization, and data subscription. DTS is capable of handling the most widely used commercial and open-sourced databases, including RDBMS and NoSQL. Data transmission is dedicated to solving the difficulties of data transfer over long distances and at high-speed in the public cloud and hybrid cloud scenarios. Here we will introduce you a successful case of data transfer related to Huawei. Huawei is headquartered in Shenzhen and has so many branches scattered around the world, thus the data and file exchange is very common. Chinasoft International Ltd., Huawei's partner in Shenzhen, needs to download videos from the German source video storage center of Huawei, transcode and re-process those videos, and then transfer the completed files to the German finished video storage center. There are some problems such as unstable transnational data transmission, the low utilization rate of transmission bandwidth, low security of data transmission, etc. As a professional solution provider of large file transmission, Raysync Transmission cooperated with Huawei to solve the problems in file transmission. Raysync Transmission helped to deploy the Raysync server in Germany’s Linux host and the web client in Chinasoft’s Windows host. After transcoding the videos downloaded from Germany, Chinasoft then transferred them to Germany through Raysync Transmission. In the process, Huawei was helped to improve the bandwidth efficiency and work efficiency to the greatest extent, and the transmission speed of the project was increased by tens of times.