... from stock Paypal workable USB TTL, USB RS232 converting cableCP2102 chip + MAX3232Openable shell convenient for ... all that is required to update the design from RS232 to USB to replace the RS232 level-translator with the ... Main products are USB converter cables: usb to RS232, USB UART TTL 3.3v level and ... level. USB RS485 to RJ11, RJ45 cables, USB RS422 cables, USB Parallel cables, USB to Audio cable. ...