UCEC High Speed USB 3.0 Multi-Card Reader with Power Cable and USB 3.0 Cable 1. This product with the latest Genesyslogic 3520 and 3233 Master control chip , performance is remarkable , high-speed transmission stability. 2. Ultra-thin design, fashion modeling, small and exquisite, easy to carry. 3. Unique identifiers and backlight design, novel and elegant . 4. Without the need for a separate power supply ,can use at the same time all interface (to prevent damage to your hard drive ,it is recommended that the 5V electricity ) 5. This product have USB 3.0 ,SD, MicroSD 5 ports .