<p>Looking <a href="https://raspberrypi.stackexchange.com/questions/340/how-much-power-can-be-provided-through-usb">here</a> it seems that the USB ports on the RPi cannot exceed 100mA so it probably wouldn't be a good idea to use a Block Erupter directly on the RPi</p>

CC BY-SA 3.0
2013-08-13T17:47:37.690Z
2013-08-13T17:47:37.690Z
2017-04-13T12:56:29.273Z
Spacebob
<p>Yes.</p>

<p>I have been running my Pi (B, 512mb) with a 1.5 amp power supply with 1 usb erupter (Sapphire) for over a week with no problems. Directly connected to the Raspberry, no hub.</p>

CC BY-SA 3.0
2013-08-31T04:21:27.433Z
2013-08-31T04:21:27.433Z
Philj6970
<p>Put it into a powered USB hub, then connect the hub to the PI.</p>

CC BY-SA 3.0
2013-08-13T16:57:25.357Z
2013-08-13T16:57:25.357Z
HeroCC
<p>This answer depends on the board revision of the Raspberry 
for older boards you have a 100mA limit </p>

<p>this limit is no longer valid for Raspberry Model B Revision 2.0 but better use a powered USB HUB without on/off button</p>

<blockquote>
  <p><code>Rev 1.0 = MAX 1A</code></p>
  
  <p><code>Rev 2.0 = MAX 2.5A</code></p>
</blockquote>

<p><a href="https://www.raspberrypi.org/blog/upcoming-board-revision/" rel="nofollow noreferrer">Raspberry Official Source</a></p>

CC BY-SA 3.0
2017-12-02T18:13:24.577Z
2017-12-02T18:13:24.577Z
Denja
<p>Looking at other setups it seems everyone is running with multiple USB Asic Miners through powered USB Hubs. Can the Raspberry Pi power a single miner through USB? Even using a 2 amp power adapter?</p>

CC BY-SA 3.0
2013-08-12T17:43:44.173Z
Which ASIC USB miner? All of the bitcoin ASIC's on the market use USB.
Nick ODell
<asic>
Can a Raspberry Pi power 1 USB Asic Miner?
Spacebob
# Can a Raspberry Pi power 1 USB Asic Miner?

(Asked by: username_0 on 2013-08-12)

Looking at other setups it seems everyone is running with multiple USB Asic Miners through powered USB Hubs. Can the Raspberry Pi power a single miner through USB? Even using a 2 amp power adapter?

**Tags:** asic

> **Comments:**
> **username_1**: Which ASIC USB miner? All of the bitcoin ASIC's on the market use USB.  

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## 4 answers

### Answer by username_0 on 2013-08-13. Score: 1 | Accepted answer

Looking [here](https://raspberrypi.stackexchange.com/questions/340/how-much-power-can-be-provided-through-usb) it seems that the USB ports on the RPi cannot exceed 100mA so it probably wouldn't be a good idea to use a Block Erupter directly on the RPi


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### Answer by username_2 on 2013-08-31. Score: 2

Yes.

I have been running my Pi (B, 512mb) with a 1.5 amp power supply with 1 usb erupter (Sapphire) for over a week with no problems. Directly connected to the Raspberry, no hub.


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### Answer by username_3 on 2013-08-13. Score: 1

Put it into a powered USB hub, then connect the hub to the PI.


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### Answer by username_4 on 2017-12-02. Score: 0

This answer depends on the board revision of the Raspberry
for older boards you have a 100mA limit

this limit is no longer valid for Raspberry Model B Revision 2.0 but better use a powered USB HUB without on/off button

> `Rev 1.0 = MAX 1A`
>
> `Rev 2.0 = MAX 2.5A`

[Raspberry Official Source](https://www.raspberrypi.org/blog/upcoming-board-revision/)


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