... adapter sampling/oem welcome paypal workable PL2303 USB RS232 converterPL2303+MAX3232USB RS232 UART adaptersampling/oem welcomeAbout Sinforcon Sinforcon is a ... China. Main products are USB converter cables: usb to RS232, USB UART TTL 3.3v level and USB UART ... are widely used in POS terminal applications, serial mouse, modem, router cotrolling, data acquisition and industrial automation applications. The ...