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A "double USB cable" is used to provide extra power to an external device, such as a hard disk in an external enclosure. It consists of two USB A-type plugs connected by a short length of cable (10-15 cm), with one of these two plugs connected by a longer cable (up to about 1 metre) to either a third USB A-type plug or a mini USB plug. You connect the "third USB A" plug or the mini USB plug to your external device enclosure and the USB A plug at the other end of the long cable to a USB port on the laptop. One USB port can provide up to 500 mA of current. If your external device needs more current, it will grind to a halt or even refuse to start moving at all. This will probably be true for bigger hard disks, CD burners and similar devices. You can then plug in the other USB A plug (the one at the and of the short cable) into an adjacent USB port on the laptop to double the amount of current available to the external device. Also seems to crop up on the internet as a "dual input USB cable".
What else can I help you with?
How do you hookup laptop to laptop?
Ethernet cable or a special usb cable A-B
What USB cable type is most commonly used for connecting printers?
USB-B to USB-A
Can you use any kind of USB cable with a HP Laptop ?
Yes, you can use any kind of USB cable with a HP Laptop as long as the adapters match your computer.
How do you connect usb cable from laptop to playstation3?
Use a male to male usb hookup
How do you charge a r500 hue with a USB?
The USB cable allows you to charge it while connecting it to a PC. Try that
Hook up PC with a wireless laptop?
Your best shot is probably with either a usb 2 usb cable or 'crossover' ethernet cable.
How do you move music from laptop to your iPod?
Using a thumbdrive or a USB cable
Will a usb cord connecting a printer to computer damage the computer?
A USB printer is connected to a computer or network by a USB cable - so the answer is "No!"
Can you use internet on laptop by connecting Nokia Asha 200 with laptop via usb?
how use internet in laptop via nokia asha 200
What kind of cable would one need to connect a laptop to a Kodak easyshare camera?
You would need a U-8 USB cable to connect a laptop to a Kodak easyshare camera. The fitting on this cable is a little smaller than the standard USB 2.0. A U-8 USB cable is easily available from suppliers such as Amazon.
How can I tether my camera to my laptop?
To tether your camera to your laptop, you will need a USB cable that is compatible with your camera and laptop. Connect one end of the USB cable to your camera and the other end to a USB port on your laptop. Install any necessary software or drivers for your camera on your laptop. Once connected, you can use software like Adobe Lightroom or Capture One to control your camera and transfer photos directly to your laptop.
Can you charge your palmone zire 31 with the usb cable connected to a laptop?
No I tried it on
