Feature: RAMPS 1.4 RAMPS designed to fit the entire electronics needed for a RepRap. RAMPS interfaces an Mega with the powerful MEGA platform and has plenty room for expansion. The modular design includes plug in stepper drivers and extruder control electronics on an MEGA shield for easy service, part replacement, upgrade-ability and expansion. Mega2560 Board Working voltage: 5V Input voltage (recommended): 7V ~ 12V Input voltage (limits): 6V ~ 20V Digital I/O Pin: 54 (of which 14 PWM) Analog input Pin: 16 DCwave on each I/O pin: 40mA 3.3V pin current: 50mA Flash memory: 256KB SRAM: 8KB EEPROM: 4KB Speed: 16MHz A4988 Driver Stepper motor driver This is a carrier board or break out board for Allegro's A4988 DMOS Package included: 1 x RAMPS 1.4 (complete soldered and assembled) 1 x Mega2560 Board 5 x Soldered A4988 driver 5 x Heatsink for A4988 driver 1 x USB cable
If your product arrives damaged or is not working, you can return it to us within 3 days after delivery or 30 days after shipment in case the delivery date is not traceable.If the item is still within the validity period of this warranty:We will reimburse you for the return shipping fees after the defective item has arrived in our warehouse. Any further costs incurred during the return process will be at the customer's expense.If the item is outside the validity period of this warranty:The customer shall be held responsible for all the shipping fees and charges when returning the defective product.Return a DOA (dead on arrival) item If the item arrived broken, please contact us within 3 days from the delivery date and follow the procedure for the 3 Days Product Guarantee.If the item has a high value, we may ask you to return it. Please include all of its accessories, like cables, chargers, batteries, in the returned parcel. If an accessory or component is missing, we will ask you to pay for it. All the return shipping fees will be covered by us.