I ran into these two Bitcoin miners recently, no documentation. System Profiler shows it appear as a USB device, both of them, but no mining software detects them.
See photos here: http://imgur.com/a/BgcLW
And the message in System Profiler here: http://imgur.com/a/t8r8C
See photos here: http://imgur.com/a/BgcLW
And the message in System Profiler here: http://imgur.com/a/t8r8C