Seagate-owned LaCie announced the Fuel 2TB external hard disk drive earlier this year. It is the second 2TB external wireless hard disk drive we've recently reviewed, Seagate's Wireless Plus 2TB model being the other one.Both LaCie and Samsung Storage, two Seagate subsidiaries, sell wireless external hard disk drives that have similar characteristics to the Wireless Plus 2TB but with a different design, fewer simultaneous device connections for file access and when used as a hotspot.The LaCie Fuel comes in two sizes: 1TB priced at £139 (US$179, AU$229) and the 2TB version priced at £169 (US$249, AU$299).DesignThe Fuel 2TB is slightly smaller than two CD jewel cases stacked on top of each other at 115mm x 115mm x 23mm (4.5 x 4.5 x 0.9 inches) and weighs 300g (9.7oz).