Enhanced Capabilities Port Mode (ECP) is a communication protocol used primarily in computer systems to improve data transfer between devices. It is an advanced mode of the Parallel Port interface, allowing for faster and more efficient data exchange. ECP supports bi-directional communication, enabling devices to send and receive data simultaneously, which enhances overall performance. This mode is particularly beneficial for connecting peripherals like printers and scanners. By utilizing a dedicated data path, ECP reduces the time required for data transmission, making it suitable for high-speed applications. Overall, Enhanced Capabilities Port Mode optimizes the functionality of legacy devices in modern computing environments.