Data Cast endothermic fire insulation technology protects your data from extreme heat. The Data Cast formulation forms a chemical bond with water molecules that, at temperatures above 160°F, releases water vapor to limit the internal temperature of the unit during a fire. Hydro Safe water barrier technology is designed to protect data loss from fresh or salt water damage, including full immersion. While keeping your data dry, the Hydro Safe technology still allows heat to dissipate during normal operation. With high data transfer, the e SATA/USB2.0 Solo PRO combines internal drive performance & connectivity with the freedom of having external storage. The e SATA interface also provides plug & play connectivity to servers. With added Plug & Play USB (Universal Serial Bus) 2.0 connectivity & high data transfer, you can use your io Safe with virtually any Mac or PC.