Genuine HP 30W power supply. Original Equipment AC/DC Power Adapter for HP Jornada PDA; 680, 720 and 728 series. Model HP F1279B.

Specifications:
Input Voltage Range: AC 100V - 240V
Output Voltage: DC 12V
Output Current: 2.5A
Power Output: 30W
Tip: 11.0mm x 4.8mm x 1.5mm