Almost same as Ramps 1.5 , the difference is Ramps 1.6 has new 2 pin connectors, which is more simple and convenient to connect, what’s more ,Ramps 1.6 has a good Heatsink above MOS tube in order to give a better function to heat dissipation. Besides, the Power of Ramps 1.6 is more larger than Ramps 1.5, the largest power will be up to or 270W , and Ramps 1.5 just can be up to 200W, or samller than 200W.