Features: 1.Industrial Grade USB2.0 HUB: Industrial grade HUB chip, using MTT technology, 7 way USB is more stable and smoothing use at the same time. 2.Multiple Protection: On board multiple protection circuits, over voltage protection, over current and short circuit protection, over temperature protection, reverse current protection, under voltage lockout, 8KV ESD protection, filter protection, etc. 3.7 Port: Industrial grade chip, onboard 7 way USB expansion port, compatible with USB 2.0/1.1 transmission. 4.Easy Installation: Reserved screw holes, easy installation and fixation, compact body, easy to use. 5.Support System: Support for os x (version 8.6 and above), for Linux (kernel version above 24.20) for Windows11 10 8.1 8 7, for WindowsXP. specification:Item Type: 7 Port USB HUB Material: Aluminum Alloy Interface Standard: Usb 2.0 Communication Rate: Theoretically Up to 480mbps Interface Form: Usb B Type Interface (input), Usb A Type Interface (output) External Power Interface Form: DC Power Supply Terminal Use Environment: -40-85 Operating System: for os x (version 8.6 and above), for Linux (kernel version above 24.20) for Windows11 10 8.1 8 7, for WindowsXP Voltage: 100-240v PackageList:1 x 7PortUSBHUB 1 x USB Cable 1 xPower Cable