Jiangsu DINGS' DS-CL28-SA which is NEMA11 [28mm] stepper with 16,000PPR high resolution encoder and Driver/RS485 programmable controller, All-In-One unit.
You can check out DS-CL28-SA runs DINGS' new released product, DMAC (DINGS Miniaturized Actuator Cylinder by Lead and Ball Screw - selectable) 28 series.