The Prolific PL2303GC is a low-cost, high-performance USB-to-Serial bridge controller designed to connect RS-232–like full-duplex asynchronous devices to USB hosts. It offers a compact solution for enabling legacy serial hardware on modern systems. Prolific drivers simulate traditional COM ports across most operating systems, allowing existing serial applications to function over USB seamlessly. Utilizing USB bulk transfer mode and large data buffers, the PL2303GC achieves higher throughput than standard UART ports, with a flexible baud rate generator supporting speeds from 1 bps up to 12 Mbps.