Please note if you buy the US plug ,the AC only support 90V-130V. Product Specification: Function: Syncs+Charging Material: Full metal case + PCB Board Output Interface: Type-A USB2.0 x 30 Input Interface: Type-B USB2.0 x 1, 90-130V AC IN x 1 Working Mode: Data Mode and Charging Mode Power Supply: 300W Intergrated Independent Power (built-in) Data Transmiion Format: STT Compaitable Charging Current: 5V/1.5A Working temperature: -40 to 85 / -104 to 185 System: Windows, Linus, MacOS 9.0 and above Demision:320 x 140 x 81mm/12.6 x 5.5 x 3.1in Weight: About 1.5kg/3.3lb Product Feature 30 Ports Industrial USB2.0 HUB powered USB hub lets you sync and charge up to 30 usb device, such as phone, hard drives, industrial printers, USB disk and others. used for testing electronic devices and especially suitable for school, office, laboratory. Supports the full 480Mbps transfer speed of USB 2.0 Industrial Grade Full Metal Case HUB This multiport usb hub is designed for harsh industrial environments such as product & repair labs, conference rooms or office workstations with its rugged industrial grade metal housing. And the entilation holes which can effective heat diipation to prevent usb adapter from over-heat. Wall-Mountable USB Hub: The industrial usb hub is wall mountable. You can attach the included wall mount plate and 4 screws, then simply used to thumb tacks to the wall besides computer or workstation. Industrial Grade Full Metal Case HUB This multiport usb hub is designed for harsh industrial environments such as product & repair labs, conference rooms or office workstations with its rugged industrial grade metal housing. And the entilation holes which can effective heat diipation to prevent usb adapter from over-heat. Wall-Mountable USB Hub: The industrial usb hub is wall mountable. You can attach the included wall mount plate and 4 screws, then simply used to thumb tacks to the wall besides computer or workstation. Compatible System Windows, Linus, MacOS 9.0 and above, This industrial hub is plug and play, requires no software or drivers to download and install. Setup iseasy, plug it into power, and then you can connect any USB devices with the 30 USB ports. NOTE The charging current is 1.5A, iPad charging current is 2A, So it cannot charge iPad. But it can charge Android tablet. Whats in the Box 1 x Industrial USB Hub 2 x Fixed Plate 1 x Power Plug 1 x USB Cable 1 x User Manual 4 x Mounting Screw