It only required power through the USB port so no extra AC adapter is required.

Functions and Applications :

- USB Powered 
   No extra power supply is required  

- Great quality
  Clear big view and it is made in Japan so the quality is garnered

- Light Weight
  Weight only 500 g

- Different viewing angles
  Up to 3 different horizontal frame positions and also vertical display can be set-up

- Easy Removable
  Convenient size for taking anywhere

Specifications :
 
- Product name
  8” Mini USB Monitor
 
- Model number
  LCD-8000U
 
- Interface
  Based on USB/Rev2.0
 
- Pixel
  SVGA 800 x 400
 
- Brightness
  250 cd/m2
 
- Frame Angle
  50 / 70 / 70 / 70
 
- Colour
  24 bit 167000
 
- Dimension
  151.5 mm x 210 mm x 32 mm
 
- Weight
  500 g
 
- Voltage
  +5V    2.5W / 2.8W / 3.2W
 
- Supported Machine
  Windows:
  CPU ： PentiumIII 1GHz above
 
- Supported OS
  Windows Vista / WindowsXP （ SP2 after ）
 
- Macintosh
  IntelCPU
  Supported OS :
  10.4.11 、 MacOS10.5.5 after