A). Compatible for most brand laptops with different output voltage choice
B). 16MM Ultra-thin,light&portable design
C). Automatically adjust output voltage between 15V and 24V
D). Protection function:        (1)Over-Current Protection     (2)Over-Voltage Protection    (3)Over-Heat Protection       (4)Short Circuit Protection    (5)Over-Power Protection              E). Efficiency:>87%                   F). Energy Star:Level V               G).with LED display on the cable