The SparkFun BOB-07841 is a breakout board with internal oscillator and EEPROM, the FT232RL is an impressive intergrated circuit board for FTDI's popular USB to FIFO IC.
This FIFO IC gives the user 8 I/O pins for parallel reading and writing.
Board comes assembled with IC as shown.
Features:
Implements full v2.0 USB protocol
Needs no external crystal
Internal EEPROM for device ID and Product Description strings
Royalty-Free Driver support for Windows, Linux, and Mac OSX