Model number: white, black
length:30CM, 50CM, 80CM, 1M
Package Included:1pc power line
Name: DC power cord
Material: copper+PVC
Interface: USB to DC3.5*1.35mm. Positive inside and negative outside
Purpose: through the computer USB jack to other equipment power.(Such as: USB lamp, USB fan, cartoon clock, radiator, 5V mini speakers, USB HUB and so on)