Features: TMC5160T Plus V1.0 is a highpower stepper motor drive controller chip with external powerMOS tubr expansion Themaximum current can reach 15A, and the heating during operation is small Supporting up to 60V, 10.6A IRMSand 15A current TMC5160T Plus can improve the accuracy of printing speed and drive highpower motor, achieving new height in quality and efficiency in 3D printing engineering The difference between having case and not having case: Quality metal case are expensive If original drive is damaged, it can be replaced directly without the need for no case drive Specifications: Material: Plastic Size:approx 50x58x28mm/2x2.3x1.1in Types: Without Case/ With Metal Case Note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment. Package includes: 1PC TMC5160T Plus V1.0 Stepper Motor Drive