USB Hub?atolla USB 3.0 Hub with 3 USB 3.0 Ports and SD/Micro SD Card Reader, Ultra Slim USB Splitter with Individual Power Switches and LEDs

How to understand?atolla USB 3.0 Hub with SD Card Reader? Product Function ?3-Port USB 3.0 Hub Transfer rates up to 5Gbps, 10 times faster than USB 2.0 and backwards compatible with USB 2.0/1.1 devices. Note: Connecting to a USB 2.0 host port may limit performance. ?2-Slot USB 3.0 Card Reader Take a few seconds to complete the data read from card reader at USB 3.0 speed. ?Individual Power Switches Save power with the on/off power switches for each USB port. ?Led Indicator LED indicators for port status. ?Micro USB Power Jack Supply additional power for power-hungry devices, such as HDD, from this Micro USB port. Product Design ?Compact, portable design with attached cable (5.9 in/15 cm). ?Save time with plug-and-play installation. ?USB bus-powered, with no external powered required. Supported Systems Windows 10, 8.1, 8, 7, Vista, XP, Mac OS X (10.x or above), Linux etc. Package Contents 1 x USB 3.0 Hub with Card Reader 1 x Quick-start Guide Note For best performance, devices connected to this hub should not exceed total current of 900mA maximum when no power source is connected to the hub. Otherwise, output current may become unstable or disconnected. Below devices are often rated as follows for your reference: ?Mouse: 100mA ?Portable hard disk: Max. 500mA ?USB 3.0 portable hard disk: Max. 900mA ?Keyboard: Max. 500mA Please double check the current of your devices before connecting to the hub.