1Specification: This is an industrial grade USB to TTL converter, using the original FT232RL, built in self recovery fuse, ESD and IO protection diode circuit, etc., small and elegant 2Industrial USB to TTL Converter: Onboard original FT232RL, multi protection circuit, multi system support 3Onboard Original Chip: The original FT232RL converter is used to provide better stability and compatibility to achieve industrial grade high performance communication between computers and TTL equipment 4Multi System Support: Compatible with for Win7, for Win 8, for Win8.1,for Win 10, for OS X, for Linux, for Android, for WinCE and other popular systems 5Three LED Indicators: Easy to view the running status, convenient programming debugging. TXD is on, sending data. PXD is on, data is being received. Power indicator light Item Type: USB to TTL Converter Material: ABS Shell Product Name: Industrial Usb to TTL Converter Host Port: USB Device Port: UART Data Rate: 300bp-3Mbps USB Interface: Interface Type: USB-A Interface Protection: Self Recovery Fuse, Esd Electrostatic Protection UART Interface: Interface Type: Terminal Block Interface: 8pin Anti Stupidity Head Interface Protection: IO Protection Diode Circuit Indicator Light: PWR: Power Indicator, Connected to Usb, Red Light when Usb Voltage is Detected TXD: Transmission Indicator Light, Red Light when Data is Sent from Usb Port RXD: Receiving Indicator Light, Red Light when Data is Sent Back from the Device Interface 1 x 8PIN Line 1 x USB to TTL Converter