Amazon.com: Gearmo USB to 3.3v TTL PIN Header Cable : Electronics
Pl2303 Usb To Ttl Uart Serial Wire Adapter Rs232 Download 6pin Terminated Block Cable Module Led Indicator 3.3v For Arduino 6ft - Pc Hardware Cables & Adapters - AliExpress
DTECH FTDI USB to TTL Serial 3.3V Adapter Cable 6 Pin 0.1 inch Pitch Female Socket Header UART IC FT232RL Chip Windows 10 8 7 Linux (6ft, Black) - Newegg.com
FTDI Serial TTL-232 USB Type C Cable [5V Power / 3.3V Logic] : ID 4364 : $19.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Amazon.com: DaFuRui RS232 to TTL Converter Module,5PCS MAX3232 3.3V to 5V RS2323 COM Serial Prot Board to TTL Connector for Arduino Microcontrollers : Electronics
Usb Ttl Serial Adapter Converter Cable 3.3v /5v 4pin Terminal Debug Connector With Ftdi Chip Support Win7/8/10/xp/android/mac - Pc Hardware Cables & Adapters - AliExpress
1pcs Ft232rl Usb 3.3v 5.5v To Ttl Serial Adapter Module Mini Port - Integrated Circuits - AliExpress
USB 2.0 RS-232 Serial Adapter with LED Indicators
Overview | All About LEDs | Adafruit Learning System
Ft232rl Ftdi Usb 3.3v 5.5v To Ttl Serial Adapter Module Mini Port For Arduino - Integrated Circuits - AliExpress
DTECH FTDI USB to TTL Serial 3.3V Adapter Cable 6 Pin 0.1 inch Pitch Female Socket Header UART IC FT232RL Chip Windows 10 8 7 Linux (6ft, Black) - Newegg.com
USB 2.0 RS-232 Serial Adapter with LED Indicators
USB 2.0 RS-232 Serial Adapter with LED Indicators
USB to Serial / UART 5V or 3.3V ($6.95) from EzSBC on Tindie
Usb Ttl Serial Adapter Converter Cable 3.3v /5v 4pin Terminal Debug Connector With Ftdi Chip Support Win7/8/10/xp/android/mac - Pc Hardware Cables & Adapters - AliExpress
FT232RL FTDI USB 3.3V 5.5V to TTL Serial Adapter Module for Arduino Mini Ports | eBay