SparkFun USB to Serial Breakout - FT232RL - BOB-12731 - SparkFun Electronics
Amazon.com: USB to TTL Adapter, USB to Serial Converter for Development Projects - Featuring Genuine FTDI USB UART IC 'FT232RL' : Electronics
CJMCU-4232 Serial Module FT4232HL USB to RS232/RS485/RS422/UART/JTAG/SPI/I2C Board
4-Port USB to RS232 Adapter FTDI Cable - Coolgear
FTDI Click - Board with FT2232H - dual high speed USB 2.0 to UART/I2C/SPI serial interface converter
FTDI Breakout with additional ISP connector - Arduino Stack Exchange
C232HM-DDHSL-0 - FTDI
FTDI Serial TTL-232 USB Cable : ID 70 : $19.95 : Adafruit Industries, Unique & fun DIY electronics and kits
1pcs Ft232rl Ftdi Usb To Serial Spi Adapter Module Mini Usb To Rs232 Double Power 3.3v 5.5v For Pro Mini Ftdi1232-1 Mwc Debugger - Electronics Stocks - AliExpress
FTDI USB-to-serial converters to drive SPI devices - Electronics-Lab.com