Xitel has announced its Ground Loop Isolator designed specifically to stop the ground loop hum that can result from connecting computers to home stereo equipment. “As the trend towards more and more consumers playing digital audio from their computers through their home stereo systems continue, many are discovering an annoying hum in their speakers. The most likely cause of this hum is not their PC or home stereo, but a ground loop in their home or apartment mains power wiring, which can occur through differences in resistance in the electrical system.” It is available for $30. [MacNN]