Specs:
 
0.9 degree (400 steps per rev)
2.8A phase current (max)
D shape 1/4" (6.35mm) output shaft, 21mm in length
1.26N.m torque at 2.8A
Total length is 56mm long
Custom 50cm long cable with connectors on each end.
 
Optional mounting hardware for Open Focus Stacking Rail includes 2 40mm long spacer and 2 55mm long M5 screw.