[tracker1]

It definitely pushes the envelope on power, if it's connected to a port that doesn't deliver, it won't work right... much more than typical membrane keyboards. They also have issues with some KVM switches that don't provide enough power. Wound up using a split power cable (like one that's usually for extra power to USB external drives, so I could push extra power into the USB interface.

Love the keyboards though... despite some QC issues.