The USB2850 data acquisition card is a hardware device developed by Beijing Altai Technology Development Co., Ltd. The device has multiple functions, including AD analog input, DA analog output, DI digital input, DO digital output, and Ethernet connection. It adopts advanced digital signal processing technology and is suitable for real-time signal processing, digital image processing, and other fields. The data acquisition card is based on PCI bus and USB bus, and it has convenient, stable performance, and high cost-effectiveness.