Dependable Performance Up to 2,239/1,573 MB/s sequential read/write throughput1 supports officewide applications Fast and Flexible Networking Built-in 2.5GbE ports, supports 10GbE SFP+/RJ-45 and 25GbE SFP28 adapter cards Simple Expansion Scale up on demand to with two DX525 expansion units3 for up to 18 drive bays and 360 TB of raw storage Comprehensive Backups Protect your IT infrastructure with license-free solutions for backup,replication, and recovery Long-Term Support Backed by Synology's 3-year limited hardware warranty, extendable to 5 years in select markets