This is Original

YAMAHA

5-Black Group Keys for

MM6, MX49, MX61, KX61, PSR-SX600

MOX6, MOFX6, MODX6

PSR-E323 PSR-E333 PSR-E403 PSR-E413 PSR-E423 PSR-E433 

PSR-GX76 PSR-S500 PSR-S550 PSR-S650 PSR-S670 and YPT Series.