Below you will find the Sandisk Mobile Mate Reader driver. This should work on all versions of Windows including 32bit and 64bit operating systems. You need to check your version as this is driver was released in 2009. It might not work on Windows 10 so check after the download if it will recognise your Sandisk.
If you have problems with the USB port then you can also check USB problems which will solve most problems you have with your USB port and driver. The driver is below so install it as the Sandisk will normally automatically install it. There would normally be a message “New Hardware Found” will appear when the driver is installed.