Integrated Stepper Indexer/Drive with Ethernet Interface
NEMA23 or NEMA34 hollow shaft stepper motor rotary index unit - RobotDigg
Fuji IBM Stepper Motor from Rotary Indexer Part# GPF3945-2B / 6838068 EC386577A | eBay
Horner Electric HE693STP100K Stepper Motor Indexer PLC Module, 1-Axis | eBay
ISMD23E2-130A-M12 | IDEC | Motion Control - Servo, Stepper Motors
Stepper Motor HAT (B) for Raspberry Pi/Jetson Nano, Onboard Dual HR8825 Motor Controller IC with Built-in Microstepping Indexer, Drive Two Stepper Motors, up to 1/32 Microstepping, for 3D Printer etc. : Amazon.co.uk: