Features: 17 Ports Simultaneous Use: Support keyboard and mouse, U disk, hard disk and other devices connected to use at the same time, sufficient power supply, sensitive response without pressure. 2Widely Used: USB expander is suitable for a variety of devices, laptops, pc flash memory, keyboards, mice, card readers, hard drives, printers, cameras, USB fans and USB cables. 3High Speed and Stable Sransmission: Using efficient USB3.0, high performance independent chip control each module more secure and smooth. Premium wire and strong joints make data transfer more stable. 4Fast Heat Dissipation: Usb expander is made of aluminum alloy material, resistant to wear, fast heat dissipation and safer use. The anodic oxidation process is rustproof and does not fade. 5Humanized Design: Ultra thin body, compact, convenient and beautiful. Leave enough space between each USB port. Plug and play, no driver required, easy to use. Package included: 1 x USB Hub