Features: brand new and high quality brand new and high quality Support USB 3.1/3.0 super speed (5Gbps) transmission, downward compatible USB2.0 Driver free, support for windows XP, for windows 7, 8 Linux; plug and for play. hot swap, easy to use and carry. Independent supply provides power supply to connect devices.Support over current and under current for protection. The devices connected to the 3-port USB 3.0 Hub must not exceed a combined current of 5 volts 900 mAh. High speed data transfer up to 5 Gbps, with LED indicator for power status. for XQD cards, only support G series cards and for Lexus cards with USB logo, supports all SD cards. Specifications: Size:approx 6x4.5x1.4cm/2.36x1.77x0.55in Standard: USB 3.0 (3 Ports) Card Compatibility: for MS/M2/SD/Tf Card Material:Aluminum Alloy+ABS Weight:55g Data Transfer Speed：5Gbps Cable Length: about 85mm/3.34in Package Includes: 1x Usb Hub Card Reader note: Only the above package content, other products are not included. Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.