The Yamaha MX49 Steinberg USB driver has been added below for you to download. This is a 32bit as well as a 64bit driver for the Yamaha MX49 adapter. Ensure that you have the correct hardware as there is also a Yamaha MX 61 driver listed on this website. You can search for more USB drivers on this website.
Below you will find the Yamaha MX61 Steinberg USB Driver which is version 1.9.9. Note that this is the Windows 7/8/10 driver which has been added below. You will need to check your hardware and then download the driver and install the USB driver for the Yamaha device.