Description: This item is for a cloned EinsyRambo 1.1b mainboard for your 3d printer. A great replacement part for MK3 MK3S or for use in your clone printer build. This motherboard is also fully supported in the Marlin , it can be used in any 3D printer build. 4 TMC2130 stepper drivers with 1 or 256th micro-stepping and sensor-less homing. 4 outputs (1 Extruder, 1 Heatbed, 2 low power outputs for fans. Fans have 3pin connectors for RPM feedback. 5V power to fans. Power 2 power input rails. Heated Bed, 15A 12-24V (15A dedicated fuse). Primary Power 10A 12-24V: Motors, Logic and Fans (5A dedicated fuse) and Extruder (5A dedicated fuse). Built 5V generation from the Motors, Logic and Fans rail. Package Includes: 1pc EinsyRambo 1.1b 1pc USB 4pcs heatsinks Note: Please item model before purchasing to make sure it fits perfectly. Please contact us firstly if there are any problems with the product. The item's color may be slightly different from the pictures due to the light and screen setting difference. Please allow slight dimension error due to manual measurement.Thanks for your kindly understanding. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store