USB-COM485-PLUS2 - Ftdi - USB to a dual interface RS485 Level Serial UART Adaptor
FT2232HL USB to UART/FIFO/SPI/I2C/JTAG/RS232 Converter Module External Memory Dual Channel
sysmocom site - multi-voltage USB dual UART
CH340 USB to TTL Converter UART Module CH340G (3.3 V/5.5 V) | Elektor
Fast Free Ship 5PCS CP2105 Module exceed CP2102 USB turn dual serial port module UART USB TO TTL STC download development boa… | Development board, Usb, Serial port