I have a couple of the 16 channel GPIO/USB boards on order for evaluation. My proposed application will have a rotary quadrature encoder potentially capable of sending up to 1000 changes per second, possibly more, on two GPIO pins. I'd be grateful for some input on the following: 1. What is the maximum speed that the GPIO pins can be toggled at in input mode, assuming that I use the GPIO Notify feature to send changes back to the host? 2. What is the maximum serial I/O baud rate to the host? It may be that the USB version can't handle the data rate that the rotary encoder will produce. I could use the Ethernet version instead. 3. Would the Ethernet version provide faster GPIO pin toggle rates? 4. What's the maximum Telnet interface speed for the Ethernet version ? 5. The GPIO Notify command appears to be missing from the Ethernet version. Is that the case, or is it just an omission on the web site? Many thanks! John.