The VIA version of the U2U module uses VIA driver software, with a simple and clean operation interface, powerful functions, support for two-step operation, and support for keyboard and mouse sets. The function of U2U module: If your keyboard has no driver, does not support custom modification, does not support macros, does not support fn layer settings, etc. shortcut functions or the driver function does not meet the use requirements, the U2U module allows you to use the VIA driver. (Our module only allows your keyboard to support the use of this software. The use of specific software functions requires everyone to learn by themselves, and we do not provide tutorials). Plug and play, the USB female port is connected to the keyboard U port, and the male is inserted into the computer U port. It can be used after correct connection. Notes: VIA is a software with many functions, but this module does not that all functions can be realized. There are also some these software. Please do not if you mind. This module supports most keyboards on the market, but some models of keyboards cannot be used (there are tens of thousands of keyboard types and models, and we cannot test the compatibility of all of them). Please do not if you mind. The fn of all keyboards cannot be recognized, because fn is a function combination key, and there is no signal output when pressing it alone. If the signal cannot be recognized, the key position cannot be recognized. Split space can only recognize one, and the keyboard with double B can only recognize one B. Some keyboards cannot recognize keys such as menu keys, which is a normal compatibility phenomenon. Please do not if you mind. Colour:Black Material:Plastic+Metal Package Contents: 1 * U2U Module 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.