Originally Posted by arnyk
I'll bet that one or both of those ports already in used is attached to a relatively low-speed device like a mouse, keyboard or printer. Focus on serving them with just one port on the laptop, and easy does it.
I have one laptop USB port dedicated to a Logitech Wireless keyboard and mouse, using the USB dongle that came with my Logitech peripherals for connecting multiple Logitech devices on one USB port, and the other port currently is a connection for the UMM-6 mic I use in REW measurements. The reason I'd want to have the doc replicator is so that I can use my USB mic and a MiniDSP that I'm using at the same time without having to disconnect the laptop from my peripherals when I'm working at my workstation. Also, even though I'm in downtown Chicago, we've been having sporadic broadband outages lately due to some infrastructure work being done in the area, and I want to have an extra port available for a USB modem I normally would use for travel, but use at home occasionally as a backup broadband connection for the laptop.
I've stayed away from dock replicators because there's something about them that smells incompatibility issues from a single USB connection to the laptop, but I'm wondering if I've been overly conservative.
Edit: Problem solved. I'd forgotten that the E-SATA port on the Dell also powered USB 2.0 devices. I picked up a 4-port Rocketfish Hub for the Logitech peripherals, which are 2.0, and they works fine connected to that port via the hub. This allows me to keep one USB 3.0 port dedicated for my UMM-6 mic, and the other USB 3.0 port either for programming the MiniDSP with the plug-in or for my USB modem as needed. So need to do anything cludgey with the mic as such: it gets its own dedicated USB port on the laptop directly. Onward...Edited by sdrucker - 12/15/13 at 8:04pm