Features: USB3.0 high-speed transmission, the theoretical transmission speed up to 5Gbps, easy to transfer pictures, videos and large files. TF/SD dual-slot design to meet your different needs.(Note: TF and SD cards cannot be read at the same time) Maximum support 2TB memory card, no delay.(The memory card is not included) Slide cover design, better protect data interface. Small size, not occupy space, easy to carry and use. Widely compatible with surveillance camera, drone, digital camera, dash cam, UAV, etc. Specification: Type: USB3.0 card reader Brand: Lenovo Model: D204 Interface: USB3.0 Theoretical transmission speed: Up to 5Gbps Card slot: TF, SD System requirement: Windows XP/7/8+, Mac OS X 10.5+, Linux 2.4.x+ Item size: 6.85 * 1.9 * 1.3cm /2.7 * 0.75 * 0.51in Packing list: 1 * Card reader