Use this device to connect your PC to a serial (TTL level) device. Uses CP2102 chipset and has a standard 0.1" pitch terminal strip to connect directly to UART or I/O pins for easy access to your MCU. It features a USB to TTL Serial Converter, USB to TTL Adapter.

USB specification:
USB 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 & 5V. Includes all handshaking and modem interface signals. 
Baud rates: 300 bps to 1.5 Mbps. 
Byte receive buffer; 640 byte transmit buffer. 
Hardware or X-On/X-Off handshaking supported.
Event character support Line break transmission.
USB suspend states supported via SUSPEND pins.
Supports Windows 98SE, 2000, XP, Vista, Window7, Mac OS 9, Mac OS X & Linux 2.40.

Size: 42mm X 15mm 

The USB side must be connected to PC or Mac. Other USB devices like a digital camera, scanner and printer is not allowed.