HB20 Mindful 2-in-1 USB card reader offers seamless compatibility with TF/SD cards, boasting USB2.0 and USB3.0 interfaces for swift data transfer. Crafted from durable ABS material, it measures 69*19*13mm and weighs merely 10g. Its theoretical transmission speeds reach up to 480Mbps for USB2.0 and 5Gbps for USB3.0, ensuring efficient file transfers. With a theoretical support capacity of 2TB, it caters to various storage needs. Additionally, it is designed to work seamlessly with a wide array of operating systems, including Windows and Mac OS.