I have a 2011 Raspberry Pi, and after much searching on the internet I cannot seem to find the specs for it. Does anyone have any idea what the main difference between a prototype 2011 Raspberry Pi and a model B Raspberry Pi is?

  • 3
    Note that the fact that it says 2011 on the top of the board does not mean it was made then.
    – goldilocks
    Jan 4, 2015 at 15:03

3 Answers 3


http://elinux.org/RPi_HardwareHistory lists the revisions of the model B. You can tell which production model of the B you have by counting the number of holes.

No holes - early model B
Two holes - later model B
Four holes - B+

The Raspberry model B (The first one) had only 256 MB of ram instead 512, but the same processor as the second, and it was without mounting holes.


The specs for any raspberry pi model is on the following website. Just select the correct folder on the right side of the screen https://raspberry-projects.com/pi/pi-hardware/raspberry-pi-pcb-versions

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