1. Card reader USB-A to SD + TF. 2. Theoretical transfer speed: USB-A [USB2.0] β 480Mbps. USB-A [USB3.0] β 5Gbps. 3. Supports up to 2Tb memory card. 4. Supports TF / SD separate reading and writing. 5. Supports mobile phones, cameras, dash cameras and other devices. 6. Working voltage / current: 5V / 100mA. 7. Material: ABS. 8. Sizes: 70 Γ 18.5 Γ 11.2mm. 9. Weight: 9.8g.