ASUS Wireless Duo (WHD-A1) Black 1TB USB 3.0 w/SD Card Reader Wireless Hard Drive Support every major operating system: Apple / Android / Kindle Fire Expandable storage with integrated SD Card reader Multiple devices connect simultaneously Splash-proof with IP43 water-resistance Search and install Wireless Duo app in Google Play/App Store/Kindle Fire - Download the ASUS WL App for Kindle fire support