Satu 6404S3 is a linear array detector system used for high-speed X-ray imaging, with a maximum scanning speed of up to 3m/s (number of visual connections). The detector has two types of pixel size: 1.575mm and 2.5mm. The system includes detection boards and acquisition boards, with each detection board integrating simultaneously. By connecting multiple detection boards end-to-end, a certain length of detector linear array can be formed to meet the security requirements of different channel sizes. The Satu 6404S3 acquisition board has two channels (each channel can connect up to 20 detection boards). The collected data is in 16-bit output format and can be transmitted to the IPC through the Ethernet interface on the digital signal acquisition board. The product is mainly used in luggage and parcel scanning, express delivery scanning, freight scanning, vehicle scanning, green passage scanning, foreign objects sorting, etc. It is also suitable for the security inspection of bulk and freight items in civil airports, railway stations, ports and other places, high-speed inspection of packages, mail by express delivery and postal services, scanning and inspection of small vehicles and green passage vehicles in logistics parks and highways, as well as sorting and detection of coal, mining and other resources.