Characteristics: Patented design with 100cm auto-retractable flat cable for laptop/desktop multi-usage Patented combination with a multi-fuction sucker and fixer to conveniently install on the PC case, furniture, windows and any facility Auto-retractable structure design without pushing any button Specifications: USB version: 2.0 Dimension (L*W*H): 59*59*20.9 Upstream: USB A male plug*1 Downstream: USB A female jack*4 Activity LED: 1/4 LEDs for power/port indication Protection: Overcurrent and high-inrush protection Cable: One 100cm connected USB2.0 auto-retractable flat cable Power mode: Bus-power mode or self-power mode 5V, 2.0 to 2.6A (optional) Driver support: Windows 2000, ME, XP