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Stepper Driver EA202D is micro-drives; the size and installation are same. The main type used to drive 42 type or small 57 type 2-phase stepper motor. Both of them power supply are DC24, output Max phase current (peak) are 1.7A. The difference is as follows: 1. The number of segments is different (see below); 2. EA202D could set four gear phase current by DIP switch, while the MU-2H202D can only output a fixed current which the user could not adjust, user could customize the current before the instructions, and otherwise the factory default value is 1.7A.