Specification: 2. Model: C396 DUO 3. Color: Black 4. Material: ABS 5. Connector: USB 3.0 6. Speed: 5Gbps 7. Card Slot: TF(Micro SD), SD 8. Dimension: 60*17*8.5mm 9. Weight: 9.1g Features: 1. All-in-one design with SD/TF card slot, and supports two cards reading and data transferring at the same time. 2. Supports OTG function, a good solution to expand your phone’s storage capacity, you could view the data files on your phone. Note: The phone needs to support OTG function as well. And you need to buy the OTG adapter separately. 3. Equipped with LED indicator, showing the working status. 4. Card reader only, memory card is not included. Package Included: 1 * C396 DUO USB 3.0 SD TF Micro SD Card Reader Support Simultaneous Read