GDKEY CP2102 Serial Adapter USB to TTL, USB 2.0 UART Converter Module with 5-Pin Header, 3.3V/5V Output and Jumper Wires, for Arduino, ESP8266, STM32, STC and DIY Electronics(2-Pack)

["Built around the CP2102 chipset, this serial adapter helps create a dependable USB-to-TTL connection for programming, debugging, and data transfer with microcontrollers and embedded boards.","Designed with 3.3V and 5V output options, this adapter works with a wider range of development setups. The 5-pin layout includes commonly used connections for TXD, RXD, GND, RST, and power.","Use this USB 2.0 to TTL converter to connect compatible boards to your computer for firmware downloading, serial monitoring, testing, and general electronics projects.","Suitable for use with Arduino, ESP8266, STM32, STC, and other TTL serial devices. It also supports major operating systems including Windows, Mac OS, and Linux for flexible integration into your workflow.","Whether you are building prototypes, troubleshooting communication issues, or working on hobby electronics, this compact serial adapter with jumper wires is a practical tool for the workbench or lab."]