1. Wiegand input to USB (analog keyboard, KEYBOARD) output. 2. The maximum number of digits input by WG (Wiegand) is 255. 3. The input acquisition speed of WG (Wiegand) is fast. Each bit of low level time can be collected as low as 30us. 4. The output speed of 4USB is fast and stable. The module can output 5V voltage. This voltage is provided by USB interface. 5. This module provides interface source code to facilitate secondary development. Users can upgrade module functions by themselves. Model description:D:USB-HID 16Hex:Human Interface Device,Plug and play,none driverUnidirectional transmission, Output data to areas where you can type word, similar to the keyboard. Colour:As Shown Material:plastic Size:62x29mm Package Contents: 1 x 5V USB to Wiegand Converter Module(Due to different product batches, the appearance , which does not affect the use) 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.