全链路国产化量产PCIe交换芯片，究竟能不能打？

Core Viewpoint - The release of the JXW8848 PCIe Gen4 switch chip marks a significant step for China in the high-end interconnect chip sector, supporting the development of a self-controlled domestic computing ecosystem [2][22]. Market Overview - The global PCIe switch chip market is valued at $1.78 billion in 2023, projected to reach $4.8 billion by 2032, with a compound annual growth rate (CAGR) of 11.7% [1]. - China accounts for 35%-40% of global PCIe switch chip demand, but local companies hold less than 10% market share, a situation that is gradually changing [1]. Product Positioning - The JXW8848 is designed for high-performance computing and storage applications [5]. Technical Specifications - The JXW8848 supports the PCIe Gen4 protocol and is backward compatible with PCIe 3.0/2.0/1.0, ensuring strong ecosystem compatibility [6]. - It features a non-blocking switch architecture with 48 channels and 12 ports, achieving a single-channel rate of 16 GT/s and a total bandwidth of up to 768 Gbps [8]. - The chip is packaged in a FC-BGA format (27mm x 27mm, 1089 pins) and operates at a core voltage of 0.9V and I/O voltage of 1.8V, with power consumption at an industry-leading level [8]. Production Timeline - Full domestic production of the JXW8848 is expected by Q3 2025, providing robust support for domestic high-performance computing platforms [9]. Technical Highlights - The JXW8848 utilizes domestically developed IP modules and manufacturing processes, ensuring complete intellectual property and supply chain security [11]. - It incorporates advanced circuit design and signal conditioning technologies to enhance signal integrity, reducing signal degradation and interference during high-speed transmission [13]. Application Scenarios - The chip supports various critical fields, including AI, storage, and industrial control, with features like multi-host domain isolation and real-time communication capabilities [15][16]. - It is designed to meet the high availability and real-time requirements of AI training and smart vehicle applications [15]. Ecosystem Development - To break the long-standing monopoly of international manufacturers in the PCIe switch chip market, the company adopts a strategy of "independent technology + ecosystem collaboration," working with domestic CPU and host manufacturers for joint certification [18]. Future Directions - Over the next 3-5 years, the company plans to focus on AI computing centers and smart devices, aiming to launch high-performance switch chips supporting PCIe Gen5 and beyond [20]. Industry Significance - The launch of the JXW8848 signifies a crucial advancement for domestic PCIe switch chips, transitioning from "usable" to "highly usable," and providing a replicable technological path for the autonomous development of high-performance interconnect chips in China [23][25].