jerseyjim wrote:
I've got a BELKIN with 4 USB ports. Use it every day. No problems. My printer/copy/fax is hooked up to it more or less permanently. Other things, like a SD card reader (from the camera) goes in and out as needed. Thumb (flash) drives too...as needed. I don't think I've used more than 3 at the same time. Again...no problems.
This is because what you plug into it either has it's own power or the power requirements are minimal. Charge your phone and tablet at the same time and put in your card reader, that's when you'll see issues. And I think that's what the OP is asking about.