Cables-To-Go 7 Port Aluminum USB 2.0 Hub for $17.95 shipped. Here is a screenshot for your reference. In addition to the 7 USB ports, it has a hard-mountable metal base to keep the hub in place. The hub can slide out of the base for portability as needed. It also works in both self-powered and bus-powered modes. Most places have this hub for about $28.
