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Is there an external storage without needing supplementary power? (i.e. a second power adapter)

EDIT: Would a very light-weight external USB SSD, such as this Verbatim, have a low enough consumption? (the manufacturer doesn't specify the consumption..)

Andrei Rînea
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2 Answers2

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The use of flash drives should not require additional power sources. This is a viable option should your storage needs not be too large.

Mobalized
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There are no drives which can be guaranteed. Most modern portable USB drives (I use Seagate & Toshiba) can run without external power PROVIDED you have a quality power supply AND a good USB power cable.

Unfortunately these are rare; even "official" Pi power supplies do not meet the specs. See Raspberry Pi Power Limitations.

If you have a PSU/cable combination which is close to 5V (measured on pin 2,6 of the expansion header) it should be OK. Ideally the USB port should be loaded with a dummy load to draw ~600mA while testing.

Other options are SSD "drives" and USB Keys.

Community
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Milliways
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