1. 5.5*2.1mm WiFi to Powerbank Cable Connector DC 5V to 12V USB Cable Boost Converter Step-up Cord for Wifi Router Modem Fan 10 Plug
  2. Used for external power source and on-board transformer, it is Universal Laptop NoteBook connectors.
  3. 10pcs DC Connectors Plug Kit DC Power Adapter Connector, 5.5 x 2.1mm Female Base
  4. DC Plugs Connectors kit Size:1 USB port ;7.9*5.5mm; 7.4*5.0mm;4.5*3.0mm;6.5*4.4mm;5.5*2.5mm;5.5*1.7mm5.5*3.0mm;4.0*1.7mm;3.0*1.0mm;
  5. Package include: 1 Pack USB to DC power cable with 10 interchangeable plugs connectors. Suitable for most household appliances.