USB 3.0 HUB Type-C HUB Multi USB Splitter 4/7 Port Expander Multiple USBC 3 Hab Use Power Adapter USB 3.0 Hub with Switch For PC Please Note (1) If you need US plug/UK plug/AU plug,please leave meage.We will send the plug you need. (2)Do not used for charging, it is used for offering more usb ports to Transfer file. (3)Thespecification of the power supply is 3.5*1.35mm, 5V 1A.It support le than 1TB hard disk , if your hard disk is more than 1TB , then the power supply not suit you. This hub does not support using multiple hard drives at the same time. (4)There is 9 options in this link , if you want usb 3.0 with power apply , please choose the right option you need (5) The power supply can solve the problem of insufficient power supply, if you need work with a hard disk , then you should choose the with power supply , and please note ,please don't use more than 2 hard disk at the same time (6) The power supply can improve the usb transmiion speed, insufficient power supply will lead to reduced data transmiion, error code, with power can improve reliability. Features 1. 100% brand new and high quality 2. Hot plug & play USB device 3. Fully compatible with USB specification version 3.0 4. With blue LED for power 5. ON/OFF switches activate or deactivate individual ports 6. Designed with 4-port,7-port,this compact USB 3.0/USB-C 3.0 high-speed hub is small enough for travel,and cable enough to meet your connectivity needs Specifications Item Name:USB HUB 3.0/2USB C 3.0 USB Ports:4,7Cable:USB 3.0 HUB is About 600mm,USB-C 3.0 HUB isAbout 1000mmSize:110*43*23mm,158*43*23mmDate Transfer Rate:Upto 5GbpsColor:BlackCompatible: WindowsXP/Vista/7 and MAC OS 9.1 or higherPcakage1 x 4 Port HUBor1 x 7 Port HUB