SparkFun USB to Serial UART Boards Hookup Guide
Contributors:
.Brent.
Connecting the USB to Serial UART Boards
These bridges have two connections. On one end there is a USB device connection. See table 1 for more details on the exact connector for the specific product. This interface is USB 1.1 / USB 2.0 full-speed compatible. A standard USB A to some sort of B cable is used to connect the bridge to the computer.
The other connection is a 0.1" pitch female header designed to connect to the microcontroller. Many of our products come with a compatible row of plated-through holes. These are designed to have 0.1" male headers soldered in. Some cases will best be served with straight headers, other with right-angle headers. The desired connection varies from design to design as discussed here. Some products come prepopulated with these headers.
Prepopulated FTDI header example