eps had alot of options from ensoniq. output expansion to 8 outs & memory expansion 2 , 4 or 8 mg in a volitial RAM cartrage . i dont remember if scsi was an option or standard.
should hopefull still be available from your local emu dealer. if emu still has the parts . if not theyll give you the number for t-soniq. and you can get it direct from them.
btw asr samples are directly loadable by emu samplers as long as they have updated Opperating system. no conversion needed