1.5Gbps transmission is 10 times faster High-speed expansion for computers/face can support 2TB large-capacity hard drives 2. One against four Support 4 ports at the same time USB3.0 special thick copper core, more power supply, can simultaneously connect 1TB hard drive, mouse, keyboard, U disk, etc. 3. Strong power without external power supply Connect the data cable, transmit data to make the device power supply more powerful and can directly drive 1TB hard drive 4. Driver plug and play for Windows series, OSX, Linux and other systems Drive plug and play 5. Super USB devices Expand 4 high-speed USB3.0 interfaces for computers, support mouse, keyboard, U disk mobile hard disk, printer, U protection, card reader, USB fan and other devices Interface: USB 3.0 Number of branch line connectors: one to four Dock: usb hub Line length: 0.3 meters Transmission rate: 5Gbps Packing method: bagged Single set weight: 100g