A new mobile device announced by Telstra on Wednesday will theoretically deliver download speeds of up to 600 megabits per second in select areas - up to six times faster than what the Turnbull government's fibre-to-the-node network will be able to deliver under its current design. The Telstra WiFi 4GX Advanced III mobile broadband hotspot, created by Netgear, is the latest super-fast mobile broadband device to join Telstra's product range and uses "3 band Carrier Aggregation technology".