Hd720 is the ultra durable external hard drive with a sporty design it features a large storage capacity and also undergoes stringent tests for waterproofing dustproofing and shock resistance to provide excellent protection of data the hd720 is the most rugged data backup for your next adventure the hd720 has passed the stringent ip68 test offering excellent water and dust resistant protection thanks to its durable design the hd720 works normally even in a dusty environment or after being submer