Using FT232RNL chip solution, high-speed communication is stable, reliable and has good compatibilityIt adopts half-hole technology and is compact in size, making it convenient for users to weld, integrate and embed. It supports a serial communication rate of 300bps ~ 3MbpsThe onboard self-restoring fuse and ESD protection tube stable current and voltage output, prevent overcurrent and overvoltage, and work stably and safely. The onboard serial port transceiver indicator light allows you to check the signal transceiver statusThe VCC switching pad is reserved. The default is 3.3V TTL. It can be cut off and soldered to 5V to lead out all the functional pins of the chip to facilitate the integration and use of secondary card methodsUsing Type-C interface, plugging and unplugging is smooth, sturdy and reliable, and prevents reverse connectionProduct type: USB to UART TTL levelSupply voltage: 5VSerial port (TTL level): 3.3V/5VCommunication rate: 300bps ~ 3Mbps: Support Win7/8/8.1/10/11, , Linux, Android, WinCE and other systemsColour:BlueMaterial:PCBPackage Contents:1x Serial Communication ModuleOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.