Ft232rl USB to Uart Breadkout Board Rs232 Ftdi Implements full v2.0 USB protocol 14 I/O lines for use with RS-232, bit-bang, or special function modes Unique serial number for security dongle applications using FTDIChip-ID Clock generator to drive microcontrollers (6, 12, 24, and 48 MHz) LED status indicatiors RX (red), TX (green) and POWER (blue)