This adapter is a switching mode power adapter. So, it is compact and it is able to provide high DC current. It can be used on any 9V-10V input devices, such as True USB GQ USB programmer, Willem EPOROM programmer, Wellon/Weilei USB universal programmer. 

Specification:
-Input: AC 100V-240V 50/60Hz
-Output: DC 9V OR 10V, 600mA OR 1A
-Weight: <70g
-Plug: 2.1mm, center positive.