20pcs 3.3V 5V USB to TTL Converter CH340G UART Serial Adapter Module STC

Description: 1. Support WINDOWS 98 / ME / 2000 / XP / Server 2003 / VISTA / Server 2008 / Win7 / Win8 32 Bit / 64 2. Support USB1.1 or USB2.0/USB3.0 for communication. 3. Simulation interface, you can upgrade serial peripherals. 4. Supports common MODE contact signal. 5. Supports IRDA SIR infrared communication. 6. Information download here 7. Provide RS232, RS485, RS422 interface. 8. Programming does not affect the target board program runs Package includes: 20 x Adapter