This USB power cord can be used with a 5V-3A power adapter, and connects with a DC 3.5mm port (3.5mm x 1.35mm)

• 
  
• A solution of power cord for the USB power adapter with 15W total power output
  
• Compatible with DC3.5 (inside diameter 1.35mm) downstream devices
  
• Support 5V-3A power input
  
• Made with 20AWG bare copper conductors to provide stable performance