I bought two SR300, but both are frequently disconnected after 1~3 sec. I have tested each camera with four different machines, but I always failed to connect it. From librealsense repository in Github, I found some people is using it with a USB powered hub. Can anybody let us know the exact power draw of realsense SR300? If you are using any USB powered hub, could share any product information?
For what it's worth, I've had similar problems with the SR300 disconnecting on all but one of the machines that I've tried it on so far so I suspect that you're not alone on this one.
We tested with Amazon basic 4port 3.0 usb hub with 5v 2.0A adaptor. But, it was not helpful at all. We just ordered another hub that supplies max 900mA per port with 5V 4.0A adaptor. We hope this works.