1.Conversion cable, DC to USB, DC female 5.5x1.8cm (or 2.16x0.7inch). USB female fully wrapped, 15.5cm long (including head), all copper wire
2.The working voltage is about 4.2v, perfect for USB fans running from 5V to 5-12V
3.5V USB Female to DC Power Jack 5.5 2.1mm Charge Adpter Cable for Cell Phone and Tablet;The Adapter can connect the DC 5.5/2.1mm power plug (Must be DC 5V) and charge the USB device.
4.Applicable to a variety of small electrical appliances, mobile phones, MP3, MP4, digital photo frames, LCD monitors.;For Charge only, no data connection
Note: The color of the item may vary slightly due to photography and your own computer
5.5x2.1mm Female to USB Female Power Supply Extension Convertor Cable
DC Plug Connector Cable, 5.5x2.1mm Female?To?USB 2.0 Female?adapter
Outside Diameter: 5.5 mm
Inside Diameter: 2.1mm
DC End: Female
USB End: USB 2.0 A Female
Total Length: about 12 cm/4.72inch
Weight: 30g

Package include:
2Pcs 5.5x2.1mm Female?To?USB 2.0 Female?adapter Cable