Macintosh 800K External Drive Manual $20.00 Manual for the 800K Macintosh 3.5 external drive Macintosh 800K External Drive Manual quantity Add to cart Continue Shopping Category: Macintosh Books and Manuals Description Apple 3-760-704-11, 030-1199-B. 1985. This is the manual for the Macintosh 800K External Drive. This manual is in very good condition.