The Packetmaster units have many powerful features: filtering, load balancing, modifying traffic, aggregation and many more. All these features are already included in basic price. No extra charge for ports, no extra charge for software. The Cubro concept is one unit one price with all features open and all ports activated. But for large deployments with many links sometimes aggregation is enough. For this type of projects we offer an aggregation only option. The customer specifies the number of outputs needed and the desired data rate. Cubro configures the unit to your needs. These units can be purchased for a special price. Ask for the Aggregation only option!