Features: The USB to RS485 RS232 Converters ensures reliable and efficient to RS485 devices. With this RS485 adapters you can quickly establish a connection to other RS485 Builtin PL2303/CH340 chip. You donot have to worry about driver.It supports stable data transmission at different rates. This Converters is for smooth integration with multiple operating system, providing a convenient solution for various applications. Suitable for both professional and DIY enthusiasts, the USB to RS485 Converters offer easy connection to industrial devices and PLCs. Specifications: Item:USB to RS485 RS232 Converters Chip: PL2303 /CH340 / RS232 485 CH340 Chip Material： Plastic Size:about 6x2.50cm/2.36x0.98in Package Includes: 1PCS USB to RS485 Converters note: Due to the problemsof lighting effects and shooting angle, there mightbe certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.