In 2024, the Chinese passenger car T-Box market continued its robust growth, achieving an installation rate of 93.3%. This high adoption rate is driven by the increasing demand for connected vehicle infrastructure (CVIS) and end-to-end autonomous driving systems. The market is highly concentrated, with the top ten T-Box suppliers, including LGE, Neusoft, Huawei, Jingwei Hirain, Gosuncn, Flaircomm Microelectronics, Valeo, Continental, Lan-You Technology, and Denso, collectively holding over 74% of the market. The rapid expansion of 5G technology in China played a significant role in this growth, with 3.59 million vehicles equipped with 5G communications, a year-on-year increase of 119.5%. Leading suppliers like Neusoft, LGE, and Huawei have successfully mass-produced 5G T-Boxes. Neusoft's 5G and V2X Box, for instance, was designated by several major original equipment manufacturers (OEMs) such as Geely, Hongqi, and Great Wall Motor, and the company also undertook overseas projects with BMW. Huawei's 5G T-Box module, known for its advanced 5G modules, supports functions like Huawei HiCar and HiLink, enhancing connectivity between mobile phones, cars, and smart homes. Flaircomm Microelectronics, which went public in 2024, raised RMB 210 million to fund R&D and industrialization projects for 5G T-Boxes. The company is focusing on developing 5G NR T-Boxes, which will integrate CAN-FD, Ethernet, and smart antennas, leveraging its expertise in communication technologies. The push for vehicle-road-cloud integration, often referred to as CVIS, has further accelerated T-Box integration with V2X (Vehicle-to-Everything) modules. In 2024, China's China-New Car Assessment Program (C-NCAP) included V2X in active safety testing, and over 500,000 passenger cars were equipped with V2X. Notable brands like NIO, Ford, Volkswagen, Lincoln, Mercedes-Benz, Audi, Rising Auto, Tank, Hongqi, BMW, and Aion have been among the first to achieve V2X mass production. The integration of C-V2X modules into T-Boxes, as seen in GM’s 12th-generation OnStar, enhances the vehicle's ability to communicate with the road, cloud, and other infrastructure, ensuring real-time data exchange and improving safety and efficiency. Harman and Neusoft are prominent players in this integration. Harman's modular TCU (Telematics Control Unit) supports cellular NAD and Autotalks' second-generation chipset for C-V2X capabilities. Neusoft’s VeTalk protocol stack, which integrates 5G and V2X, has been launched and is in mass production. This T-Box can support day 1 and day 2 V2X scenarios and develop new 5G applications, making it versatile and future-proof. The rise of end-to-end autonomous driving systems in 2025 has created new demands for T-Boxes. These systems use deep learning models to process massive amounts of sensor data, such as video streams, in real-time. The T-Box must support low-latency, high-bandwidth data transmission to ensure reliable and rapid data exchange between the vehicle, cloud, and infrastructure. Suppliers are integrating 5G and C-V2X functions to meet these requirements. Additionally, T-Boxes are being enhanced with edge computing and heterogeneous computing capabilities to support lightweight model reasoning and improve real-time processing. For instance, Lan-You Technology’s YDU 2.0 uses edge computing to enable driving-parking integration, demonstrating the cutting-edge advancements in this field. To address connectivity issues in remote areas, some T-Boxes are being equipped with low-orbit satellite communication modules, like Starlink technology, to ensure continuous data transmission. This is crucial for maintaining the reliability of autonomous driving systems and enhancing the overall user experience. In summary, the "Global and China Passenger Car T-Box Market Report 2025" underscores the rapid evolution and increasing importance of T-Boxes in the automotive industry. The integration of 5G, V2X, and advanced computing technologies is transforming T-Boxes into critical components for high-level connected and autonomous vehicles. The report provides a comprehensive overview of the market, covering key topics such as the 5G T-Box market, vehicle-road-cloud integration, and development trends. Industry insiders predict that the T-Box market will continue to grow as 5G and CVIS technologies mature. Companies like Neusoft and Huawei, with their strong R&D capabilities and strategic partnerships with major OEMs, are well-positioned to lead this trend. The ability to integrate multiple communication protocols and advanced computing features will be key to staying competitive and meeting the evolving demands of the automotive industry. ResearchAndMarkets.com, the world's leading source for international market research reports, highlights these trends and provides valuable insights into the global and Chinese T-Box markets.