Currently our system supports orders of only one node type at a time. Please select either Smart Nodes (up to 10 quantity) or Lite Nodes (up to 999 quantity). If you would like to purchase both node types, simply complete an order for one and then return to complete an order for the next node type. If you need to select the other node type, lower quantity to 0 for your current node selection and the other node type will become available to select quantity.