Based on the Silicon Labs CP2103, this little programmer offers a lot of features at a great price.  This version plugs directly into a solderless breadboard.

• USB 2.0
• Provides RX and TX at PICAXE compatible levels and polarity
  
• Provides 5V from USB port to power the PICAXE and other circuitry (amount depends on USB port capability)
  
• LED Indicators for Data activity

Also available in a jumper version.  This version connects up to your project or breadboard with jumper wires (sold separately).

Datasheet

PICAXE is a registered trademark of Revolution Education.