Can I use a USB or FireWire hub with Drobo storage devices?
We do not recommend using a USB or FireWire hub for any storage device. Storage typically requires the highest throughput of any connected device. For example, it’s a better idea to plug your keyboard and mouse into the hub rather than your Drobo storage product, or other external storage device. For optimum performance, plug your Drobo device directly into your computer. In addition, be aware that running many peripherals on the same computer can often slow down performance for all devices.