This HM-LM2-1-23 receiver (2 servo arms included not shown on photo) fits the Walkera Lama2-1 only. It will not fit the Lama2 or the Novus CX helicopters. If you are looking to upgrade your Lama2 or Novus CX to this newer more advanced receiver you need to do some research first in Lama2 or Novus CX forums to see which additional parts are connected to the new receiver that need to be changed out at the same time. Please observe the photo carefully when you order because this part is not returnable.