great for those working on spreadsheets, accounting files or financial applications.
This sturdy number pad is easy to take with you, so you can work confidently and quickly-wherever and where.
If the product cannot be used, it can be checked as follows:
Step 1: You can reinsert the USB port to check whether the interface is normal.
Step 2: Restart the computer and let the computer find the device again;
Step 3: Replacement method, to another computer to try to use it normally;