Western Digital My Cloud Home. Internal storage capacity: 4 TB. Storage media: HDD. Ethernet LAN data rates: 1000 Mbit/s. Windows operating systems supported: Windows 10. Windows 7. Windows 8.1. Mac operating systems supported: Mac OS X 10.10 Yosemite. Mac OS X 10.11 El Capitan. Mac OS X 10.12 Sierra. Mobile operating systems supported: Android 4.4. Android 5.0. Android 5.1. Android 7.1. iOS 9.0. iOS 9.1. iOS 9.2. iOS 9.3. Product colour: Grey. Width: 53 mm. Depth: 140 mm. Height: 175.5 mm