Wow fantastic product, it got the power, excellent control, allot for the buck.Why not 5 star, Well where's the software, the instruction manual, what? no app ;-)And there's very little out-there that I could use. I have-it wire, working and with other software working like a stepper... Well It would be great to have the missing software to use the communication port and really use all it fonction (Servo / Encoder).As a stepper, the performance and capacity, it's all there.I think the manufacturer and the seller should at leases provide sufficient information to use there fantastic product.