I received the "CANbus" M620 Motor & DPC-18.C1.2 Display.
Here is the Difference ; 1st. the power cord connector from the Motor to the display is a Green Triangular plug in ,Not Green 1/4" round plug in!
2nd.the DPC-18.C1.2 has some Settings that can be changed,
But Wheel size is set at 28"...