This heatbed is designed to the RepRap MK2a version of the heat bed PCB. It has a central mounting hole on the front side to allow for three point mounting. This is much easier for bed levelling in comparison to 4 point mounting. Additionally, the solder pads have been greatly increased in size, making it much easier and allowing for the use of 1206 surface mount components. Please note however, that this does not remove the need to use proper strain relief. Also, the pads on the non-heating side of the PCB have been removed to avoid confusion.
Dimensions (Outer): 214mm x 214mm
Dimensions (Heat Bed): 200mm x 200mm
Resistance: 0.9 - 1.1 Ohms
Operating voltage: 12 Volts
Operating current: 11 - 13 Amps