* External 360 KB 5¼ inch Floppy Drive Unit (switchable 40/80 track)
* Internal Dual 3½ inch (early YD-640) DD Floppy Disc Drives
* External [https://www.thenimbus.co.uk/nimbus-media/gallery?match=xw40&extra=1 XW40 ] 40MB Winchester Hard Drive
* Expansion Slot #:
** RM Nimbus Hard drive / Floppy Disk SCSI Controller Card with External Connector - PN12865 Issue 3