Compare MK2B PCB Heatbed 12V/24V for 3D Printer RAMPS1.4 $19.00 MK2B is the latest and the best type of heatbed money can buy as of today. 100% compatible with all Prusa and Mendel 3d printer variants. Specifications: Color: Black Etching: 35um... 5 (1) Add to Cart