The UGREEN USB-A to RS232 DB9 Serial Adapter Cable (20222) is a precision-engineered solution for professionals who need to interface modern computers with legacy hardware. Designed to connect RS-232 serial devices—such as modems, scanners, and industrial controllers—directly to a USB port, this adapter eliminates the need for outdated COM ports on your motherboard. At the heart of the device is the latest Prolific PL2303 chipset, ensuring stable data transmission and broad compatibility. With a maximum transfer rate of up to 1Mbps, it handles data communication efficiently, making it an essential tool for technicians and engineers working with microcontrollers, test equipment, and networking switches. Installation is streamlined for productivity. The cable offers Plug & Play functionality following a one-time driver installation, allowing you to get to work quickly. It supports a wide array of operating systems, including Windows 11, 10, 8.1, 8, 7, Vista, XP, 2000, and Mac OS X 10.6 and above. Built for the rigors of a workspace or industrial environment, the 2-meter cable provides ample reach without sacrificing signal integrity. The USB Male to RS232 Male configuration ensures a secure fit, providing a dependable link for critical system configurations and hardware management.