Mark Rages wrote: > Just use a powered hub. They come with 5V switching power supplies. So does your PC. The output voltage requirements for a powered hub are the same as those for the USB ports on your PC because those are esentially powered hubs too. ******************************************************************** Embed Inc, Littleton Massachusetts, http://www.embedinc.com/products (978) 742-9014. Gold level PIC consultants since 2000. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist