Donny,

After looking at the drawings, and talking with a local guy that uses an S-900 daily, there doesn't seem to be a way to install a right-angle plug in the USB slot and leave it there permanently. There are some options, but this isn't among them. The USB slot it positioned in an area where it would be vulnerable to damage when the keyboard is placed in the case and transported. The only viable option is to mount a small hub in a protected area, then route a cable to the USB connection that has a right angle connector. Then the Thumb Drives can remain in the hub, however, the cable would have to be unplugged before transporting.

The only other option involves installing a USB powered hard drive within the case, which would void the warranty.

One of the many areas where Yamaha dropped the ball with the design of their latest series of keyboards was to eliminate the Smart Media Card. It could have easily been replaced with either an optional 2.5-inch hard drive, or one of the other high-capacity storage devices that could be installed and remain in place.

Sorry I couldn't be of more assistance with this problem.

Gary

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Travlin' Easy