|#FBF0 - #FBFF||?||[[Otten & Fecht 1 MB RAM-Disc]]||Read||Write
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|#FBF6||?||[[Vortex Disc Drives]]765 FDC (Vortex,ext) Status Register||Read|| -
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|#FBF7||?||[[Vortex Disc Drives]]765 FDC (Vortex,ext) Data Register||Read||Write
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|#FBFE||?||[[Amstrad Magnum Phaser|Magnum Light Phaser]]||-||Write