Dr. Bott today began shipping its T3 USB Hub, a thumb-sized, three-port USB hub designed for mobility. The T3 is a semi self-powered hub, not requiring an external power supply but providing 500mA of power to devices (versus 100mA that self-powered hubs provided). The T3 Hub is available for US$33.95 in three colors: titanium, ice, and translucent grey. MacMinute had the opportunity to test the T3 prior to its release and found that its flawless performance combined with its miniature size made for an excellent product.