AC3-L43 Type-cUSB-c USB2.0 120cm 4 Ports Expansion Dock Notebook High Speed HUB 1. 5Gbp-s high-speed transmission, 4-port full load efficient and practical, 6TB hard drive easy to read, responsive, refused to Cottonwood 2. Support 4-port simultaneous expansion, say goodbye to repeated plug-and-play 3. Backup power, drive high power, support 5V1A -2.4 a charger 4. ABS shell, heat dissipation fast, surface matte technology, delicate feel without fingerprints, strong and durable 5. Working State real-time know, the device in working state, will light up the LED Blue Indicator Light, connection state at a glance 6. No driver, Plug and play, multi-system compatibility 7. Supports keyboard, mouse, U disk, card reader, printer, USB fan and other USB devices 8. Mobiletablet, OTG extensions 9. Power off state, easily drive 22.5-inch 1 TB hard drives 10. 1g file transfer in 3 seconds, large files can not be easily transferred offline in seconds 11. Keyboard and mouse, do not card, easy to connect wirelesswired keyboard and mouse, internetgame more enjoyable 12. Safety: over-voltage protection, over-current protection, leakage protection 13. Size: 101x30x10mm