The DS220+ runs on Synology DiskStation Manager (DSM) OS, which is a browser-based operating system which helps to simplify managing your Synology NAS. Its CPU is a 2.0 GHz Intel Celeron J4025 Dual-Core with a burst frequency of up to 2.9 GHz, and its 2GB of DDR4 RAM, which can be upgraded to 6GB, allows frequently used files and applications to be quickly accessed. Using its Gigabit Ethernet port, this NAS is capable of sequential reads of up to 225.98 MB/s and sequential writes of up to 192.21 MB/s, as well as encrypted reads of up to 225.99 MB/s and encrypted writes of 195.2 MB/s.