dodocool 4-Port HUB Superspeed USB 3.0 Compact & Stylish High-strength ABS material. Small and portable. Specially designed for desktop or notebook. High-speed Transmission & Quick Expansion Complys to USB3.0 standard. 5Gbps theoretical transmission speed. Support 4 USB devices used at the same time. Strong Compatibility Downwards compatible with USB2.0 and USB1.1. Support USB devices even mobile HDD. Stable Performance USB3.0 ports provides balanced transmission， low--power dissipation， no noise， secure and stable. Safe & Reliable Unique over-voltage protection and current overload protection effectively protect HUB and connected devices. Plug & Play Support Hot-swap， no driver needed. Support Windows， Linux， Mac OS. Specifications Material: ABS plastic
Color: Black
Chip: VLI
Output: 4 * USB3.0
Product size: Approx. 7.7 * 6.1 * 3cm / 3.03 * 2.4 * 1.18in
Product weight: Approx. 97g / 3.44oz Package includes 1 * 4-Port HUB
1 * User manual