4.5 Watt AC/DC Unregulated Linear Wall Adapter

9 Volts at .5 Amps 

Specifications:

• Connector Type: Cylindrical Female
  
• Connector Size: 2.1mm x 5.5mm
  
• Polarity: Center Negative
  
• Dimensions: 2.5" x 1.9" x 1.7"
  
• Cord length: 6'
  
• Weight: .6 lbs
  
• Certifications: UL/CSA