ITEM NAME:FT232RL USB 3.3V 5.5V to TTL Serial Adapter Module Download Line Mini Port Product Description Description: Feature: 1. FT232RL chip is used. 2. All signal ports of FT232RL chip and TTL/CMOS level are introduced. 3. RXD/TXD communication light. 4. USB power supply, optional 5V or 3.3V interface level (if other levels are needed, target voltage can be provided directly on VCC and GND pins). 5. FT232RL USB serial port module USB to TTL level. 6. King of brush USB-RS232-TTL line. 7. USB2TTL overcurrent protected version. 8. USB2.0 best FT232RL chip,USB power USES 500MA FUSE to protect your USB power and devices! More stable performance. 9. This product uses the new design, and the USB2.0 best FT232RL chip, converts the USB into the serial port. There are two power versions. Specification: PCB board size: 35mm*18mm*8mm/1.37*0.7*0.31'' Package weight: 4g Note: Please allow 1-3mm differs due to manual measurement. Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding. Included: 1 X USB 3.3V 5.5V to TTL Serial Adapter Module.FT232RL chip is used. All signal ports of FT232RL chip and TTL/CMOS level are introduced. FT232RL USB serial port module USB to TTL level. USB2.0 best FT232RL chip,USB power USES 500MA FUSE to protect your USB power and devices!