This is a USB 2.0 to TTL UART 6PIN CP2104 Module Serial Converter Designed to be used for USB to TTL electronic projects TTL interface output, Connect MCU easily to your computer Built-in USB to RS232 Transfer chip USB specification 2.0 compliant with full-speed 12Mbps Standard USB type A male and TTL 6pin connector. 6pins for 3.3V, RST, TXD, RXD, GND & +5V Event character support Line break transmission USB suspend states supported via SUSPEND pins Temperature Range: -40? to +85? Supports Windows 98SE, 2000, XP, Vista, Window7, OS 9, OS X & Linux 2.40 Dimension: 52 mm x 17 mm (LxW) use the same driver as CP2102 module Package Included: 2 * USB To TTL CP2104 Module With cable