The Portabella is a Broadband Bonding Network Appliance that provides cost effective Internet connectivity for mobile and portable deployments.When peered with Portabella Server (optional), Portabella provides uplink and downlink bonding for any protocol between a mobile location and the host office via bonding together multiple cellular wireless Internet access cards for increased performance and reliability. Portabella aggregates the capacity of as many as four USB based cellular data cards providing increased access bandwidth in both uplink and downlink directions for the communication link to the host office. The Portabella Server will also act as a transparent proxy, enabling the Portabella with a bonded connection out to the public Internet. Alternatively, Portabella when used with the Broadband Bonding Service subscription, will enable uplink/downlink bonding without requiring any Portabella Server device as the Portabella Server will be hosted by Mushroom Networks as part of the Broadband Bonding Service.