A significant market for "exclusive" or "legacy" drivers exists because many U232-P9 adapters sold online contain counterfeit Prolific chips.
: If the device is not recognized, it may appear as a "USB Serial Converter" or "Prolific USB-to-Serial Comm Port" under Ports (COM & LPT). Vadim Tsozik - MCT U232-P9 Linux driver u232 p9 driver exclusive
: It is ideal for connecting industrial controllers, POS equipment, modems, label printers, and GPS receivers to computers that lack native serial ports. A significant market for "exclusive" or "legacy" drivers
This report details the current status of device drivers for the USB-to-Serial converter. u232 p9 driver exclusive