there are no instructions at all except silkscreen. I was able to get it working after a few toggles of the output wires and no problem with the devices as every motor is different. If you want to play around with the hard drive motor, this would be a nice easy way to do it
Seagate Barracuda 500GB ST500DM002 SATA 3.5 Internal Hard Drive - 7200 RPM
36 Review
WD Blue Desktop 1TB Hard Drive - 3.5 inch, 5400~7200RPM, SATA3 (6.0GB/s), 64MB 💾 Cache, Ideal for PC, Mac, CCTV, NAS, DVR, Raid and SATA Applications, 1 Year Warranty
176 Review
Seagate Momentus 2 5 Inch Cache ST1000LM024
57 Review
Seagate Barracuda hard drive 1 TB ST31000528AS
50 Review
Shock-Resistant Transcend StoreJet 25M3 USB 3.1 Slim Portable Hard Drive with 500GB Capacity
99 Review
2 TB External HDD Western Digital WD Elements Portable (WDBU), USB 3.0, black
84 Review
🔜 Seagate Backup Plus Slim STHN2000400 2TB Portable Hard Drive - Black: Your Reliable External Storage Solution
93 Review
🔌 Seagate Expansion 3TB Portable USB 3.0 External Hard Drive (STEA3000400) in Black
60 Review