user27406: I bought a YellowJacket to mine bitcoins. I'm using my raspberry pi to test it. 
My actual configuration is: Raspberry pi using the usb from a laptop. With 1 yellow jacket. Software cgminer 4.9.2
My question is why I get so low speed? 
What I can do to improve my speed ?



user141: USB stick ASIC mining devices often fail due to lack of power over the USB port: laptop USB, weak USB hub, weak power supply.
Make sure you use a powered USB hub that others have had success with. Not all powered USB hubs can handle bitcoin mining.
This is especially problematic when running multiple USB sticks, but even a single stick can fail if your USB ports have particularly weak power as is often the case with laptops.

27406: <p>I bought a YellowJacket to mine bitcoins. I'm using my raspberry pi to test it. </p>

<p>My actual configuration is: Raspberry pi using the usb from a laptop. With 1 yellow jacket. Software cgminer 4.9.2</p>

<p>My question is why I get so low speed? 
What I can do to improve my speed ?</p>

<p><img src="https://i.stack.imgur.com/ffrDS.png" alt="enter image description here">
<img src="https://i.stack.imgur.com/ICgYn.png" alt="enter image description here"></p>
 141: <p>USB stick ASIC mining devices often fail due to lack of power over the USB port: laptop USB, weak USB hub, weak power supply.</p>

<p>Make sure you use a powered USB hub that others have had success with. Not all powered USB hubs can handle bitcoin mining.</p>

<p>This is especially problematic when running multiple USB sticks, but even a single stick can fail if your USB ports have particularly weak power as is often the case with laptops.</p>
