Malaysian mobile operator Celcom Axiata aims to increase data revenue growth to 25 percent by year-end with the launch of the PortaWiFi USB port, Celcom Dongle Wifi and its data plans, reports Bernama. Celcom Axiata chief financial officer Chari TYT made the announcement with the launch of 21Mbps PortaWifi, developed by Huawei. PortaWifi comes with car chargers and three-pin indoor chargers with USB adapter. It can be used in cars, homes or offices to create a Wi-Fi hotspot which can support up to five devices simultaneously.