I'm wiring 5V from a power supply directly to a micro USB cable. I'm only using the +5V and GND connectors, and leaving Data+ and Data-. While I only plan to use the cable for power, do I need to do anything with that D+ and D- cables, or can I leave them disconnected from both ends?

UPDATE I should clarify that the USB cable is connected to a Raspberry Pi, not a basic circuit.

  • 1
    \$\begingroup\$ Can leave it disconnected. \$\endgroup\$ Jun 12, 2015 at 5:45
  • \$\begingroup\$ The difference is that I'll be powering a Raspberry Pi, not just a basic circuit. \$\endgroup\$
    – Melllvar
    Jun 12, 2015 at 5:48
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    \$\begingroup\$ In this context the Pi is like a basic circuit, in that it only wants power from the USB with no data requirement. \$\endgroup\$
    – TomG
    Jun 12, 2015 at 11:54

1 Answer 1


You can leave them open.

Think about it this way - if nothing is plugged into the USB port they are essentially not connected to anything anyway.


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