Synology DiskStation DS720+ is a compact network-attached storage solution designed to streamline data and multimedia management. Two built-in M.2 SSD slots and Synology SSD Cache technology allow you to boost system I/O and application performance. With scalable storage design, DS720+ lets you start small and expand storage capacity with the Synology DX517 as your data grows1. Accelerated Application Performance Reach Optimal Performance and Capacity with SSD Cache Expand Storage with Ease Empower Collaboration and Productivity Protect and Restore Data in a Snap+ Safeguard Your Physical Assets with 24/7 Surveillance Specification CPU Intel Celeron J4125 4-core 2.0 GHz, burst up to 2.7 GHz Hardware encryption engine Yes (AES-NI) Memory 2 GB DDR4 onboard (expandable up to 6 GB)5 Compatible drive type • 2 x 3.5' or 2.5' SATA HDD/SSD (drives not included) • 2 x M.2 2280 NVMe SSD (drives not included) Hot swappable drive Yes External port • 2 x USB 3.0 port • 1 x eSATA port Size (HxWxD) 166 x 106 x 223 mm Weight 1.51 kg LAN 2 x Gigabit (RJ-45) Wake on LAN/WAN Yes Scheduled power on/off Yes System fan 92 x 92 x 25 mm AC input power voltage 100 V to 240 V AC Power frequency 50/60Hz, single phase Operating temperature 0°C to 40°C (32°F to 104°F) Storage temperature -20°C to 60°C (-5°F to 140°F) Relative humidity 5% to 95% RH Maximum operating altitude 5,000 m (16,400 ft)