 Korg also released the X2 (76-key) with 8 Mbyte ROM (6Mbyte X3 + 2Mbyte new piano) in 1994 along with a rackmount version dubbed the X3R, which also had a floppy disk drive.Many of its samples come from the T3 Series and 01/W Series synthesizers.The X3 features 339 samples compressed into 6 megs of ROM, and Korg beefed up this model in areas where previous models had been weak (organs and strings, for example).