Features: Implements full v2.0 USB protocol Needs no external crystal Internal EEPROM for device ID and Product Description strings +3.3V 100ma output 5 volt tolerant inputs USB Specification 2.0 compliant; full-speed (12 Mbps) All handshaking and modem interface signals Use this device to connect your PC to a serial (TTL level) device. Uses CP2102 chipset and has a standard 0.1 2033; pitch terminal strip to connect directly to UART or I/O pins for easy access to your MCU USB specification 2.0 compliant with full-speed 12Mbps. Standard USB type A male and TTL 6pin connector. 6 pins for 3.3V, RST, TXD, RXD, GND andamp; 5V. Baud rates: 300 bps to 1.5 Mbps. Byte receive buffer; 640 byte transmit buffer. Hardware or X-On/X-Off handshaking supported. Supports Windows 98SE, 2000, XP, Vista, Window7, Mac OS 9, Mac OS X andamp; Linux 2.40. Size: 42mm X 15mm (approx) . Weight: 4g (approx). The USB side must be connected to PC or Mac. Other USB devices like a digital camera, scanner and printer is not allowed.