It is not large, it is not expensive and it is not useful for taking pictures. But, the D-Link 7-Port USB 2.0 Hub can be a valuable piece of a photo-processing system.
I place my laptop on my office desk and plug the D-Link 7-Port USB 2.0 Hub into a USB port. Immediately, I have an optical mouse, a printer, a scanner and several external hard drives available to me. The D-Link 7-Port USB 2.0 Hub works great - and moves data fast. The same functionality is available to desktop users as well.
Here is more from D-Link ...
"The D-Link QuickMedia DUB-H7 2.0 is a Hi-Speed USB 2.0 7-port hub that is backward compatible with USB 1.0 and 1.1. The DUB-H7 allows connection of up to seven additional USB peripherals or devices to your USB ready PC or Mac. Designed to provide quick and easy access, the D-Link DUB-H7 provides seven Type A USB downstream ports for connecting USB peripherals, devices, or other USB hubs. A single Type B upstream port connects the DUB-H7 to the host computer or another USB hub, enabling up to 127 devices to be connected by cascading multiple hubs. Configured directly by the operating system, the D-Link DUB-H7 operates seamlessly with both Microsoft WindowsTM and Apple MacintoshTM Operating Systems. Diagnostic LEDs provide port status for each port and power status. The DUB-H7 includes an Installation Guide, a 6-foot Hi-Speed USB 2.0 certified A to B cable, and power adapter. The DUB-H7 is backward compatible with USB 1.0 and USB 1.1, allowing you to connect all your existing USB peripherals and integrates easily in your existing network at home or in the office."