Here's an industrial-looking 7-port hub: http://www.buy.com/prod/startech-com-st7200usbm-mountable-rugged-industrial-7-port-usb-hub-7-x/q/loc/101/214442089.htm

Here's an industrial-looking 7-port hub: http://www.buy.com/prod/startech-com-st7200usbm-mountable-rugged-industrial-7-port-usb-hub-7-x/q/loc/101/214442089.html http://www.buy.com/prod/startech-com-st7200usbm-mountable-ru... A bit pricey, and doesn't come with a power supply (it has terminals for bare wires carrying 7-12V DC). But looks hefty.