Drobo 5N: Network Attached Storage - 5 bay array - Gigabit Ethernet port (DRDS4A21) Highly scalable network storage array with 64TB filesystem support. Operating Humidity: 5%  80% Gigabit Ethernet connectivity. Supports myDrobo Platform, DroboAccess encrypted-end-to-end remote access, and DroboPix allowing secure and automatic uploads of mobile photos and videos Battery-backed memory to protect against power interruptions with built in internal power supply;Operating System Support : Apple macOS X 10.10 and higher;Microsoft Windows 10;Microsoft Windows 8;Microsoft Windows 7 Optional mSATA SSD boosts performance up to 10X (mSATA card not included). Environmental Specifications : Operating Temperature: 10C  35C (50  95F), Non-Operating Temperature (storage): -10  60C (14  140F) Award-winning BeyondRAID automated data protection. On-the-fly and instant capacity expansion