A dual band antenna providing a high forward gain includes a radiator, a director disposed in front of the radiator, and a reflector disposed behind the radiator. A statistical database includes continually updated values of false acceptance rate and false rejection rate for each combination of user, biometric device and biometric device comparison score. The decryption hardware decrypts the encrypted data packets and forwards the decrypted data packets to a hardware classifier that classifies the decrypted data packets and directs the classified decrypted data packets to the appropriate receive resource of the network interface card. The stopper member is slidably received in the housing and connected to the third sidewall. A system for treating bone includes an introducer for delivering bone and an energy source selectively coupleable to the bone cement to alter the viscosity of the fill material as it flows out of the introducer. An original host storage system is connected directly to the replacement host storage system.