RAMPS 1.4 3D Printer Control Shield + 4988 Stepper Driver with Heat Sink<br /><br />Main Features:<br />- It has Cartesian robots and requirements of the extruder<br />- Extended to control other accessories<br />- Heater / fan output three thermistors circuit MOSFET<br />- With 5A additional safety and component protection<br />- Extra bed heating control 11A fuse<br />- Suitable 5 Pololu stepper driver board<br />- Pololu board pin socket， easy to be replaced and removed<br />- I2C and SPI pin for extended use. All MOSFET into PWM pins for versatility<br />- When LED indicates the heater output， 2 motors can be connected to the Z Prusa Mendel<br /><br />    Specifications<br />General<br />  Type: RAMPS 1.4 3D Printer Control Board Kit                                                 <br />Electronic Components<br />  Working Current: 3A                                                 <br />Weight and Size<br />  Package Weight: 0.170 kg                                                  <br />                        Product Size(L x W x H): 12 x 6 x 3 cm / 4.72 x 2.36 x 1.18 inches                                                  <br />                        Package Size(L x W x H): 14 x 10 x 4 cm / 5.50 x 3.93 x 1.57 inches                                                 <br />Package Contents<br />  Package Contents: 1 x RAMPS 1.4 3D Printer Control Shield， 5 x 4988 Stepper Driver， 1 x Heat Sink                                                 <br /><br /><br /><br />                                                                                            <br />