USB cables are used to power many types of computer peripherals, such as printers, scanners and even keyboards. If you have a device that needs to be placed away from the computer, the USB cables may not be long enough. One solution is to use a USB power extension cord. One way to do this is to make your own cable by splicing together wires from a UTP cable to wires from a USB cable.
- Skill level:
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Things you need
- Tape measure
- UTP cable
- Wire cutters
- USB cable
- Wire strippers
- Heat shrink cable
- Utility knife
- Hair dryer
Measure the length of UTP cable you will need with the tape measure. Cut the UTP cable to the required length with the wire cutters.
Cut the USB cable into two pieces with the wire cutters.
Place a 2-inch piece of heat shrink cable over each end of the USB cable.
Remove 1 1/2 inches of the outer cover from the UTP cable and the USB cable with the utility knife.
Remove ½ an inch of insulation from each of the small wires in the UTP and USB cable.
Place a 1-inch piece of heat shrink cable over the small wires on the USB cable.
Reduce the number of wires on the UTP cable by twisting them together. Leave one green wire and then twist together the white/orange and orange wires. Twist together a white and green wire and then twist together the remaining wires.
Connect the wires from the UTP cable to the USB cable. Twist together the white/orange and orange wire to the red wire. Twist together the white and green wire to the white wire. Twist together the green wires and then twist together the remaining wire.
Place the heat shrink cable over the spliced wires. Plug the hair dryer into the socket and then turn it on low. Apply heat to the heat shrink cable until it begins to shrink over the wires.
Place the remaining heat shrink cable over the electrical wires and then apply heat from the hair dryer.
Plug the extension cable into a USB port or USB hub to complete the project.
Tips and warnings
- If you use the hair dryer on high you may melt the heat shrink cable.