3.0 high-speed transmission, reading and writing without waiting: USB3.0 speed protocol is adopted, and the measured reading speed is 90 MB/s. , pictures and files experience the pleasure of data transmission. SD/TF dual card slot design, large and small card data can be transmitted to each other at the same time, bid farewell to data inversion/frequent plugging. It is both a card reader and a hub: it is suitable for a variety of devices and supports external USB devices such as mouse/keyboard/USB flash drive. Type-C/USB devices can be switched and read at : Type-C/USB dual connector design, different devices and different interfaces, one card reader is enough. USB computer card reading, extensive adaptation: adapt to USB interface devices such as /desktops, and handle all kinds of files easily. Aluminum alloy can dissipate heat quickly, and the transmission is more stable: all-aluminum alloy is wrapped, which is strong and scratch-proof, and can be used as for a long time, which can export heat faster and the transmission rate is stable and guaranteed. Color:Grey Material:Aluminum Alloy Package Contents: 1 * Card Reader Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.