Adata SD700 External Solid State Drive: The SD700 arrives as one of the first IP68 dust and water proof durable external SSDs with 3D NAND Flash. It combines an array of innovative features and technologies to give you performance, endurance, and convenience wherever you go. Clad in a tough shell, itÃ¢ÂÂs also military-grade shockproof while four times faster than external HDDs (mechanical drives) at 440MB/s read and write. Running via USB 3.1 Gen 1, the SD700 is cross-platform compatible with Windows, Mac OS, and Android to enable easy content sharing and transfer. ItÃ¢ÂÂs light (just 75g!), silent, cool, and very power efficient. This is the durable SSD your adventures demand. Unlike mechanical drives, solid state drives have no moving parts. TheyÃ¢ÂÂre completely silent, much more durable, donÃ¢ÂÂt build up heat, and of course consume far less power. The SD700 embodies all this with advanced 3D NAND SSD technology, and maintains all of these advantages as an external drive thanks to a custom durable enclosure.