Upgraded version: 1 USB 3.0 ports, speed up to 5Gbps. Two downstream USB 2.0 ports speed up to 480MB/s, easy to use, suitable for PC, laptop, Mac and any other USB-enabled computer. Windows Series, Mac OS compatible systems. Simple and small and portable fashion: solid shape, stable insertion and extraction, fine technology, good performance, durable. Simple, small and remarkable design, simple and portable, easy to work outdoors. ABS material has fast heat dissipation: the classic design of high-quality aluminum alloy + the ABS plastic shell are used to effectively accelerate the heat dissipation of products and make the transmission more stable. No power supply and plug and play: adopt the latest USB hub controller, no driver, plug and play, supports multiple USB devices, all adopt high-quality electronic devices and ensure stable operation of the product. Wide application: All USB devices can be used. Mobile hard disk, keyboard, mouse, U disk, card reader, USB radiator, MacBook, Mac Pro/Mini, iMac, Surface Pro, XPS, laptop, USB flash drive, mobile hard disk, printer, scanner, mobile phone, tablet and other connected computers for transmitting or uploading data.