Features: USB3.0 Power Adapter, you can connect mobile phones, tablets PC, mobile power and 3.5mm mic earphone etc. Leaving space for cable passthrough, provides a 5 Port USB3.0 Hub power by a generous EU or US plug power supply. Plug and for play, supports hot swapping/plugging. Fit in a 2.36inch/ 6cm hole on your desk. Suitable for flash drive, usb mouse, Keyboards, card reader, digital camera. Extend the USB interfaces to the desktop, so you can connect any USB device on the desktop and charge for Tablets / for Phones and more. Specifications: Material: Plastic Color: Black Top Diameter: About 69mm/ 2.72in Bottom Diameter: About 60x24mm/ 2.36x0.94in Package Includes: 1Pc USB3.0 Hub 1Pc Power Adapter note: Please allow 1-2cm errors due to manual measure. Pictures may not reflect actual color due to the different monitors.