Specifications: High speed data transfer up tp 5Gbps. Fast transfer rate for reliable copy/download/backup. Card Compatibility: MS, M2, SD, TF LED indicator for power status. Multiple USB 3.1 interface support plug and play. Hot swap, easy to use and carry. Support over current and under current protection. Support USB 3.1/3.0 super speed (5Gbps) transmission, downward compatible USB 2.0. Driver free, support for windows XP/7/8 and for Mac OS, for Linux. Independent supply provides power supply to connect devices. Item Name: Card Reader with Cable Material: Aluminum Features: Portable, Durable, Easy to Use Size: 7.7cm x 5cm x 2.5cm/3inch; x 2inch; x 1inch; (Approx.) Notes: The devices connected to the 4 port USB 3.0 hub must not exceed a combined current of 5V 900mAh. Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Card Reader with Cable