Bi directional switching is applicable to more scenarios, with two in one out/one in two out optionsTwo computers share a printer, which eliminates the need for repeated plugging and unplugging when switching printing, effectively protecting native devices and reducing office costsExternal controller, expanding external controller for easier switching and controlCircuit safety protection and printing are more reassuring, using printed circuit boards with embedded capacitors/resistors/diodes and other core components to provide overcurrent/reverse current/short circuit protection, making printing more reassuringInstant file transfer for printing, USB 3.0 standard, theoretical transfer rate up to 500MB/S. File transfer to printer is as efficient as direct connection, making office work more efficientProduct Name: USB 3.0 Bidirectional SwitchInterface: 3 * USB 3.0Switching: button switchingInput/output: bidirectional shared outputSize: 62 x 60 x 14.5mmColour:As ShownMaterial:ABSPackage Contents:1 * Printer SharerOnly 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.