Breakout Board For FTDI FT232RL USB to Serial IC For Arduino – Everything Pi
USB to TTL UART CH340 Serial Converter, 5V/3.3V Universal. Not need switching. IC CH340G|usb to ttl|usb - usbusb to - AliExpress
Usb To Serial Port Multi-function Converter Module Rs232 Ttl Ch340 Sp232 Ic Win10 For Pro Mini Stm32 Avr Plc Ptz Modubs - Inverters & Converters - AliExpress
CH340G – cheap USB to serial alternative | Usb, Circuit projects, Serial
CH340G - USB to Serial TTL - RS232 converter IC - SOIC16
Pololu USB-to-Serial Adapter
USB to UART Bridge - FT232RL - COM-00650 - SparkFun Electronics
1PCS FT232RL SSOP28 FT232 SSOP SMD USB UART ( USB Serial) I.C. new and original|usb uart|uart usbft232 usb uart - AliExpress
5PC CH340G chip USB transfer serial chip CH340 SMD SOP16 IC | eBay
FT230X USB to UART Interface IC Pinout, Features, Equivalents & Datasheet
CH3330N - Small and Cheap USB-Serial Converter IC Needs No Crystal - Electronics-Lab.com
USB to Serial IC - CH340E (10 Pack) - COM-16278 - SparkFun Electronics