I am willing to sell my apple //gs or apple // disk drive II or hard drive emulator with the 8 GB SD that store the data with bluetooth and the nob to switch disk images AS-IS and working for either $100 dollars or swapping it for a MicroDrive Compact Flash from reactive for apple //gs chipset picture shown below.
Click image for larger version. 

Name:	MDT1.jpg 
Views:	18 
Size:	173.1 KB 
ID:	144733