This is a Nema 17 step motor with integrated USB controller. It can be controlled by Focus Stacking Studio for PC on Windows and on Raspberry Pi.
 
	
Nema 17
	
Its length is 33mm.
	
Built-In USB port, no USB-to-Serial needed
	
Built-In camera control port 
	
7 levels of micro stepping -- full, half, 1/4, 1/8, 1/16, 1/32, 1/64, 1/128
	
32 levels of power adjustment from 0.0625A to 2.0A (but please do not exceed 1.2A)
	
Can be controlled by Focus Stacking Studio
	
Maximum voltage is 12V or under
	
Maximum current rating is 1.0 A
 
This is perfect for many applications requiring a step motor, for example, focus stacking, motorized camera slider, etc.
 
Software for Raspberry Pi