1.) Material : ABS 2.) Output : USB2.0 Type-A*4 3.) Input : Type-A*1, Micro USB 4.) Dimension : 77mm*32mm*22mm 5.) Power Supply : USB Power Supply, Reserved 5V Micro B Power Supply Port 6.) Data Cable : Attached Design, 30 cm 7.) Indicator : Blue LED Indicator 8.) Certificate : CE, FCC, RoHS