1. 3.3V and 5V power supply with a selection jumper.
2.Size Dimensions: 40 X 21mm

USB Serial Light Adapter to use ATmega8U2 chip baud rate up to 115200bps, stable and reliable performance for Arduino FIO / pro / mini, lilypad Arduino, x-board modules.

Technical Specifications
• provide Arduino Ethernet, x-board, Mini, Mini Pro, LilyPad, LilyPad Simple, and Fio download interface.
• Baud rate transmission with high, stable and reliable performance.
• 3.3V and 5V power supply with a selection jumper.
• Size Dimensions: 40 X 21mm.
Distribution list
• USB Serial Light Adapter  1
• mini USB communication line 1
Frequency range: 2.4 - 2.497 GHz
Output Power: 8dBm ± 1dBm
Data Rate: 54Mbps-1Mbps
Modulation type: DSSS, CCK
Dimensions: length 54 × width 49 × 11mm high
Weight: about 40g