| Driver model | TR21-1 | TR21-2 | TR22-1 | TR22-2 |
| Current | 1A / phase | 2A / phase | 1A / phase | 2A / phase |
| Power input | AC100-115 V ±15%,, 3A 50Hz/60Hz |
AC120-230 V ±10%,, 3A 50Hz/60Hz |
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| Excitation mode | Full step: 1.8° 2-phase excitation Half step: 0.9° 1-2-phase excitation |
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| Dimension | 100(L)x37(W)x156(H)mm |
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| Weight | 685g |
690g |
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| Ambient temperature | 0°C~+40°C |
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