Keith Emerson Signature Voice Crystal 3 D-50 - 64 Voice RAM Card for the Roland D50

via this auction

"64 voice sound bank storage card. Works great but you could probably change the battery. Plastic case is in worn condition but has protected the actual card well"

Curious if these had Keith Emerson patches for the D-50 or if they where just some promotional branding deal. The discription does not say.