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USB devices using more than 100 mA had to be connected via a powered hub. The original Model B board had current limiting polyfuses which limited the power output of each USB port to approximately 100 mA. Model B Hardware Revisions and USB Power limits Hardware Revision 1.0

There is a Wiki section about this issue which is worth a read. If the Raspberry Pi's supply voltage falls below a certain value (anecdotally stated as around 4.75 V), or it begins to fluctuate, your setup may become unstable. If you are adding to a product list it would help clarity if entries are kept/added in alphabetical order.Īdding peripherals may increase the loading on the power supply to your board and this, in turn, may affect the voltage presented to the Raspberry Pi.

No markup - relates to all production boards.

(!) - Information from alpha and beta board days - beta board verified peripherals should still apply to production boards for the most part, but the alpha board is fairly different.

(B) - Relates to model B production board.

(A) - Relates to model A production board.

A suggested suffix markup scheme is as follows:

21.3 Working external Battery packs (with 5 V regulated output)Ī note about this page: For USB devices, please specify if they required a powered hub Notesġ: Now that the Model B board is shipping, details added should relate to this board and the default Debian distribution unless stated otherwise.

18.15 Tinkerforge Bricks and Bricklets ().

18.3 USB to Parallel Port/Printer Adapters.

16 USB UART and USB to Serial (RS-232) adapters.

10.1 Databases of supported sound cards.