You might try these ones.
(that's what I do these days...

http://www.seca.be/secacatalog.nsf/Produit+Selection/B2E2EF3773CB95B0C1256B68003E3816
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Keyboards/Sound Units: Kurzweil 2600S, Roland VR-760, Acces Virus C, Roland G-800, Akai AX60, Minimoog, Machine Drum, Roland R8-M, mediastation x-76