This Q Drive from Quality Computers was made for the Apple II. Sporting 85 Megs, it was very large at a time when most hard drives were only 20 or 40MB.
This one was split into 3 partitions, and used on an Apple IIGS, is running GS/OS 6.0.1 and is loaded with apps. It has been verified and validated and works great! Comes with power cable, SCSI cable and SCSI terminator. Also includes the Q-Drive Care & Feeding Manual.
Requires a SCSI interface card (not included).