For data transfer rates up to 10 Gb/s Backwards compatible with USB 3.0, 2.0 and 1.1 With SD card reader USB powered LED status indicator Plug-and-play installation Compatible with Windows, Mac and Linux Material: aluminium and plastic Connections: 3 x USB-A 3.1 female, SD slot female - USB-C 3.1 male (with built-in cable, approx. 0.25 m ) Colour: Silver/black