KETRON SD7:-
Voices:- 368 / RAM:- 46
Styles:- 260
Mp3/Wave:- 25
Midifiles:-
Video:- 0
RAM:-16GB
Internal storage option +120/+240GB

KETRON SD7 AJAMSONIC:-
Voices:- 398 / RAM:-56 Professional Sounds
Styles:- 260 + 350
Mp3/Wave:- 1000+
Midifiles:- 1000+
Videos:- 15 (includes Bonus videos in bonus folder)
RAM:- 16GB + 32GB
Internal storage option +120GB/+240GB/+500GB