Belkin F4U018-BLK Hi-Speed USB 2.0 7-Port Mobile Hub for $2.80 shipped.  It is sold by websbestdeals through ebay.  Here is a screenshot for your reference.  This compact Belkin F4U018-BLK Hi-Speed USB 2.0 7-Port Mobile Hub provides 7 downstream USB ports that offer Plug-and-Play connectivity.  Most places have it for about $19.