USB3.0 (that is, USB3.1 Gen1) and USB3.1 (that is, USB3.1 Gen2) have the same pins, and USB3.0 is backward compatible, and the part of USB2.0 is completely reserved.In addition, 5 wires are added to carry out full-duplex high-speed transmission. Although the cost is relatively high, it avoids the influence of wire quality problems to a certain extent.That is, the backward compatible part of USB2.0.Small size, easy to use.Made of high quality material, it is durable.Type: adapter boardRated current: 1.8A (1~4 pins) 0.25A (other pins)Withstanding voltage: AC 100V ()Working temperature: -55 degrees to 85 degreesColour:greenMaterial:PCBSize:25 x 20MMPackage Contents:1 x Adapter BoardOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real . The measurement allowed is +/- 1-3cm.