Reliable and fast data transfer. With this cable, you can connect your bank to router. Thus, when cut, you can use your bank to supply your router Internet blackout solve baby, continuous supply ArtifactUse mobile ,charging treasure or notebook usb interfaceDrive after a outage or optical router cat onlineVia computer USB jack to other devices. Such as: USB lights, USB fan, Cartoon watches, radiator, 5V mini speakers, USB HUB, etc.Name: AdapterInterface: USBtransfer DC5.5 x 2.1MM(2.5MM)Input voltage: DC 5VOutput voltage: DC 9V and 12V MaxOutput current: For 800mA or less application is recommendedsize:2.1mm X 5.5mmMaterial:plasticcolour:BlackPackage Contents:1 X Conversion LineOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.